{ "instance": { "none-20210120.htm": { "axisCustom": 1, "axisStandard": 33, "contextCount": 467, "dts": { "calculationLink": { "local": [ "none-20210120_cal.xml" ] }, "definitionLink": { "local": [ "none-20210120_def.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-eedm-def-2019-01-31.xml", "http://xbrl.fasb.org/srt/2019/elts/srt-eedm1-def-2019-01-31.xml" ] }, "inline": { "local": [ "none-20210120.htm" ] }, "labelLink": { "local": [ "none-20210120_lab.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-doc-2019-01-31.xml", "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml" ] }, "presentationLink": { "local": [ "none-20210120_pre.xml" ] }, "referenceLink": { "remote": [ "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml", "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-ref-2019-01-31.xml" ] }, "schema": { "local": [ "none-20210120.xsd" ], "remote": [ "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd", "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd", "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd", "http://xbrl.fasb.org/srt/2019/elts/srt-roles-2019-01-31.xsd", "https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd", "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-parts-codification-2019-01-31.xsd", "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd" ] } }, "elementCount": 619, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2019-01-31": 5, "http://transphormusa.com/20210120": 1, "http://xbrl.sec.gov/dei/2019-01-31": 2, "total": 8 }, "keyCustom": 48, "keyStandard": 401, "memberCustom": 48, "memberStandard": 51, "nsprefix": "none", "nsuri": "http://transphormusa.com/20210120", "report": { "R1": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4508d782f3aa449b9d96a13d9f038b69_D20200601-20200601", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "0001001 - Document - Cover", "role": "http://transphormusa.com/role/Cover", "shortName": "Cover", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4508d782f3aa449b9d96a13d9f038b69_D20200601-20200601", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CollaborativeArrangementDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2107103 - Disclosure - Nexperia Arrangement", "role": "http://transphormusa.com/role/NexperiaArrangement", "shortName": "Nexperia Arrangement", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CollaborativeArrangementDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2109104 - Disclosure - Fair Value Measurements", "role": "http://transphormusa.com/role/FairValueMeasurements", "shortName": "Fair Value Measurements", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConcentrationRiskDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2113105 - Disclosure - Concentration of Credit Risk and Significant Customers", "role": "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomers", "shortName": "Concentration of Credit Risk and Significant Customers", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConcentrationRiskDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InventoryDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2116106 - Disclosure - Inventory", "role": "http://transphormusa.com/role/Inventory", "shortName": "Inventory", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InventoryDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2119107 - Disclosure - Property and Equipment", "role": "http://transphormusa.com/role/PropertyandEquipment", "shortName": "Property and Equipment", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2122108 - Disclosure - Intangible Assets", "role": "http://transphormusa.com/role/IntangibleAssets", "shortName": "Intangible Assets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2126109 - Disclosure - Debts", "role": "http://transphormusa.com/role/Debts", "shortName": "Debts", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:VariableInterestEntityDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2131110 - Disclosure - Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\")", "role": "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSW", "shortName": "Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\")", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:VariableInterestEntityDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2136111 - Disclosure - Commitments and Contingencies", "role": "http://transphormusa.com/role/CommitmentsandContingencies", "shortName": "Commitments and Contingencies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "none:TemporaryEquityTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2140112 - Disclosure - Convertible Preferred Stock", "role": "http://transphormusa.com/role/ConvertiblePreferredStock", "shortName": "Convertible Preferred Stock", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "none:TemporaryEquityTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1001002 - Statement - Consolidated Balance Sheets", "role": "http://transphormusa.com/role/ConsolidatedBalanceSheets", "shortName": "Consolidated Balance Sheets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:ReceivablesNetCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2144113 - Disclosure - Stockholders' Equity", "role": "http://transphormusa.com/role/StockholdersEquity", "shortName": "Stockholders' Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2149114 - Disclosure - Stock Option Plans", "role": "http://transphormusa.com/role/StockOptionPlans", "shortName": "Stock Option Plans", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ic31dac3c89f049dd932a3de329834b6c_D20200101-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2155115 - Disclosure - 401(k) Savings Plan", "role": "http://transphormusa.com/role/A401kSavingsPlan", "shortName": "401(k) Savings Plan", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2156116 - Disclosure - Income Taxes", "role": "http://transphormusa.com/role/IncomeTaxes", "shortName": "Income Taxes", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2161117 - Disclosure - Related Party Transactions", "role": "http://transphormusa.com/role/RelatedPartyTransactions", "shortName": "Related Party Transactions", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i6f4d77ab3e7142cda0d93a8e3a538a71_D20200401-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2163118 - Disclosure - Subsequent Events", "role": "http://transphormusa.com/role/SubsequentEvents", "shortName": "Subsequent Events", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i6f4d77ab3e7142cda0d93a8e3a538a71_D20200401-20201231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConsolidationPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2202201 - Disclosure - Business and Basis of Presentation (Policies)", "role": "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies", "shortName": "Business and Basis of Presentation (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConsolidationPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2310302 - Disclosure - Fair Value Measurements (Tables)", "role": "http://transphormusa.com/role/FairValueMeasurementsTables", "shortName": "Fair Value Measurements (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2314303 - Disclosure - Concentration of Credit Risk and Significant Customers (Tables)", "role": "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersTables", "shortName": "Concentration of Credit Risk and Significant Customers (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2317304 - Disclosure - Inventory (Tables)", "role": "http://transphormusa.com/role/InventoryTables", "shortName": "Inventory (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "us-gaap:TemporaryEquitySharesOutstanding", "us-gaap:TemporaryEquitySharesIssued", "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:TemporaryEquitySharesAuthorized", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1002003 - Statement - Consolidated Balance Sheets (Parenthetical)", "role": "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "shortName": "Consolidated Balance Sheets (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i6328cdd0963e401d9cffcae6dc3d6838_I20191231", "decimals": "INF", "lang": "en-US", "name": "us-gaap:TemporaryEquityParOrStatedValuePerShare", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2320305 - Disclosure - Property and Equipment (Tables)", "role": "http://transphormusa.com/role/PropertyandEquipmentTables", "shortName": "Property and Equipment (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2323306 - Disclosure - Intangible Assets (Tables)", "role": "http://transphormusa.com/role/IntangibleAssetsTables", "shortName": "Intangible Assets (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2327307 - Disclosure - Debts (Tables)", "role": "http://transphormusa.com/role/DebtsTables", "shortName": "Debts (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2332308 - Disclosure - Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") (Tables)", "role": "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWTables", "shortName": "Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2337309 - Disclosure - Commitment and Contingencies (Tables)", "role": "http://transphormusa.com/role/CommitmentandContingenciesTables", "shortName": "Commitment and Contingencies (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfStockByClassTextBlock", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2341310 - Disclosure - Convertible Preferred Stock (Tables)", "role": "http://transphormusa.com/role/ConvertiblePreferredStockTables", "shortName": "Convertible Preferred Stock (Tables)", "subGroupType": "tables", "uniqueAnchor": null }, "R36": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfStockByClassTextBlock", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2345311 - Disclosure - Stockholders' Equity (Tables)", "role": "http://transphormusa.com/role/StockholdersEquityTables", "shortName": "Stockholders' Equity (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "lang": "en-US", "name": "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2350312 - Disclosure - Stock Option Plans (Tables)", "role": "http://transphormusa.com/role/StockOptionPlansTables", "shortName": "Stock Option Plans (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2357313 - Disclosure - Income Taxes (Tables)", "role": "http://transphormusa.com/role/IncomeTaxesTables", "shortName": "Income Taxes (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "us-gaap:TemporaryEquitySharesOutstanding", "us-gaap:TemporaryEquitySharesIssued", "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:TemporaryEquitySharesAuthorized", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2403401 - Disclosure - Business and Basis of Presentation (Details)", "role": "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "shortName": "Business and Basis of Presentation (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ib1dc0e5a18234ff5840dcd497a4251f8_I20200212", "decimals": "INF", "lang": "en-US", "name": "none:CommonStockMergerConversionRateOfShares", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1003004 - Statement - Consolidated Statements of Operations", "role": "http://transphormusa.com/role/ConsolidatedStatementsofOperations", "shortName": "Consolidated Statements of Operations", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:CostOfRevenue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InterestCostsCapitalized", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406402 - Disclosure - Accounting Policies (Details)", "role": "http://transphormusa.com/role/AccountingPoliciesDetails", "shortName": "Accounting Policies (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "if73fd5c8bf894697a5e75a7cbecd0cc1_I20181231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:ContractWithCustomerLiability", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i0a94e9e923ea45d7af15c73f873becb6_D20180404-20180404", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ProceedsFromLicenseFeesReceived", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408403 - Disclosure - Nexperia Arrangement (Details)", "role": "http://transphormusa.com/role/NexperiaArrangementDetails", "shortName": "Nexperia Arrangement (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i0a94e9e923ea45d7af15c73f873becb6_D20180404-20180404", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ProceedsFromLicenseFeesReceived", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i566cdadf6d0e42ae9d7b071b1ee5cd6d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NotesPayableFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411404 - Disclosure - Fair Value Measurements - Fair Value Hierarchy (Details)", "role": "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails", "shortName": "Fair Value Measurements - Fair Value Hierarchy (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i566cdadf6d0e42ae9d7b071b1ee5cd6d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NotesPayableFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2412405 - Disclosure - Fair Value Measurements - Changes in Level 3 inputs (Details)", "role": "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails", "shortName": "Fair Value Measurements - Changes in Level 3 inputs (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i86f667645bef4344a5a1ac331619aa94_I20171231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ae2e924150a443ea6944619b9ff7211_D20200101-20200930", "decimals": "3", "first": true, "lang": "en-US", "name": "us-gaap:ConcentrationRiskPercentage1", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415406 - Disclosure - Concentration of Credit Risk and Significant Customers (Details)", "role": "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails", "shortName": "Concentration of Credit Risk and Significant Customers (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ae2e924150a443ea6944619b9ff7211_D20200101-20200930", "decimals": "3", "first": true, "lang": "en-US", "name": "us-gaap:ConcentrationRiskPercentage1", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InventoryRawMaterialsNetOfReserves", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2418407 - Disclosure - Inventory (Details)", "role": "http://transphormusa.com/role/InventoryDetails", "shortName": "Inventory (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:InventoryRawMaterialsNetOfReserves", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2421408 - Disclosure - Property and Equipment (Details)", "role": "http://transphormusa.com/role/PropertyandEquipmentDetails", "shortName": "Property and Equipment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2424409 - Disclosure - Intangible Assets - Finite-Lived Intangible Assets (Details)", "role": "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails", "shortName": "Intangible Assets - Finite-Lived Intangible Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2425410 - Disclosure - Intangible Assets - Estimated Future Amortization Expenses (Details)", "role": "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails", "shortName": "Intangible Assets - Estimated Future Amortization Expenses (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebt", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2428411 - Disclosure - Debts - Additional Information (Details)", "role": "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "shortName": "Debts - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:InterestExpenseDebt", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1004005 - Statement - Consolidated Statements of Comprehensive Loss", "role": "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss", "shortName": "Consolidated Statements of Comprehensive Loss", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FairValueOptionChangesInFairValueGainLoss1", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2429412 - Disclosure - Debts - Notes Payable (Details)", "role": "http://transphormusa.com/role/DebtsNotesPayableDetails", "shortName": "Debts - Notes Payable (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueOptionQuantitativeDisclosuresTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i9733051150684fcf81ca7a404f20dfc4_I20191231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:NotesPayableFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2430413 - Disclosure - Debts - Maturities Schedule (Details)", "role": "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails", "shortName": "Debts - Maturities Schedule (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i1b4bf79fae424c689417dca360fb796f_D20170523-20170523", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PaymentsToAcquireEquityMethodInvestments", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2433414 - Disclosure - Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") - Narrative (Details)", "role": "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "shortName": "Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i1b4bf79fae424c689417dca360fb796f_D20170523-20170523", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PaymentsToAcquireEquityMethodInvestments", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i952c51b3ae214e2b98f4d50428d84da6_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NoncontrollingInterestInVariableInterestEntity", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2434415 - Disclosure - Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") - Income Statement Information (Details)", "role": "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails", "shortName": "Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") - Income Statement Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i150562c093194088b8e2e0ad54dc0f31_I20171231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:NoncontrollingInterestInVariableInterestEntity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AssetsCurrent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2435416 - Disclosure - Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") - Summarized Financial Information (Details)", "role": "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails", "shortName": "Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited (\"AFSW\") - Summarized Financial Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i952c51b3ae214e2b98f4d50428d84da6_I20191231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AssetsCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "idc17b0e905a144c9a719119140a90909_I20201231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2438417 - Disclosure - Commitment and Contingencies - Operating Lease Maturity Schedule (Details)", "role": "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails", "shortName": "Commitment and Contingencies - Operating Lease Maturity Schedule (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "idc17b0e905a144c9a719119140a90909_I20201231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-5", "first": true, "lang": "en-US", "name": "none:PurchaseCommitmentAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2439418 - Disclosure - Commitment and Contingencies - Narrative (Details)", "role": "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails", "shortName": "Commitment and Contingencies - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:LeaseAndRentalExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfStockByClassTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:PreferredStockSharesAuthorized", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2442419 - Disclosure - Convertible Preferred Stock (Details)", "role": "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "shortName": "Convertible Preferred Stock (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfStockByClassTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:PreferredStockValueOutstanding", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "us-gaap:TemporaryEquitySharesOutstanding", "us-gaap:TemporaryEquitySharesAuthorized", "us-gaap:TemporaryEquitySharesOutstanding", "us-gaap:TemporaryEquitySharesIssued", "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:TemporaryEquitySharesIssued", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2443420 - Disclosure - Convertible Preferred Stock - Narrative (Details)", "role": "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "shortName": "Convertible Preferred Stock - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-6", "lang": "en-US", "name": "none:TemporaryEquityConversionBasisMinimumAggregateProceedsOfUnderwrittenPublicOfferingOfCommonStock", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R59": { "firstAnchor": { "ancestors": [ "us-gaap:TemporaryEquitySharesOutstanding", "us-gaap:TemporaryEquitySharesAuthorized", "us-gaap:TemporaryEquitySharesOutstanding", "us-gaap:TemporaryEquitySharesIssued", "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:TemporaryEquitySharesIssued", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2446421 - Disclosure - Stockholders' Equity - Narrative (Details)", "role": "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "shortName": "Stockholders' Equity - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "INF", "lang": "en-US", "name": "us-gaap:CapitalUnitsAuthorized", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ib3b65f58a87642b8b99f26e5675276ec_I20171231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockSharesOutstanding", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1005006 - Statement - Consolidated Statements of Changes in Stockholders' Deficit", "role": "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "shortName": "Consolidated Statements of Changes in Stockholders' Deficit", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i86f667645bef4344a5a1ac331619aa94_I20171231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R60": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfStockByClassTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2447422 - Disclosure - Stockholders' Equity - Reserved Common Stock (Details)", "role": "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails", "shortName": "Stockholders' Equity - Reserved Common Stock (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "if38e9c41cc0443c69a389910dac2394c_I20191231", "decimals": "INF", "lang": "en-US", "name": "us-gaap:CommonStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ClassOfWarrantOrRightOutstanding", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2448423 - Disclosure - Stockholders' Equity - Warrants (Details)", "role": "http://transphormusa.com/role/StockholdersEquityWarrantsDetails", "shortName": "Stockholders' Equity - Warrants (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i03f09c54d3ff4aaaa573958511436b36_I20200930", "decimals": "INF", "lang": "en-US", "name": "us-gaap:ClassOfWarrantOrRightOutstanding", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2451424 - Disclosure - Stock Option Plans (Details)", "role": "http://transphormusa.com/role/StockOptionPlansDetails", "shortName": "Stock Option Plans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i6bef2af2d81d4cc69ee4aafef9060a20_I20190101", "decimals": "2", "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R63": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2452425 - Disclosure - Stock Option Plans - Schedule of Option Activity (Details)", "role": "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "shortName": "Stock Option Plans - Schedule of Option Activity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "INF", "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2453426 - Disclosure - Stock Option Plans - Share-based Payment Agreement, Expense (Details)", "role": "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails", "shortName": "Stock Option Plans - Share-based Payment Agreement, Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2454427 - Disclosure - Stock Option Plans - Fair Value Assumptions (Details)", "role": "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails", "shortName": "Stock Option Plans - Fair Value Assumptions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R66": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i96d93e6e326b4e858a5990cde2b87057_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:IncomeLossAttributableToParent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2458428 - Disclosure - Income Taxes (Details)", "role": "http://transphormusa.com/role/IncomeTaxesDetails", "shortName": "Income Taxes (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": "-5", "lang": "en-US", "name": "us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DeferredTaxAssetsOperatingLossCarryforwards", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2459429 - Disclosure - Income Taxes - Deferred Tax Assets (Details)", "role": "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails", "shortName": "Income Taxes - Deferred Tax Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DeferredTaxAssetsOperatingLossCarryforwards", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2460430 - Disclosure - Income Taxes - Effective Income Tax Rate Reconciliation (Details)", "role": "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails", "shortName": "Income Taxes - Effective Income Tax Rate Reconciliation (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibaf45291873d43f4805f92bc884a849d_I20200930", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:AccountsReceivableRelatedParties", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2462431 - Disclosure - Related Party Transactions (Details)", "role": "http://transphormusa.com/role/RelatedPartyTransactionsDetails", "shortName": "Related Party Transactions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i63b9a6d6a010496d942efe8940e14a38_I20191231", "decimals": "-5", "lang": "en-US", "name": "us-gaap:AccountsReceivableRelatedParties", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1006007 - Statement - Consolidated Statement of Cash Flows (Statement)", "role": "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement", "shortName": "Consolidated Statement of Cash Flows (Statement)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:DepreciationDepletionAndAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R70": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ib41524cdb42f485889357833a7c4752b_D20200212-20200212", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:SaleOfStockConsiderationReceivedOnTransaction", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2464432 - Disclosure - Subsequent Events (Details)", "role": "http://transphormusa.com/role/SubsequentEventsDetails", "shortName": "Subsequent Events (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i140534760a364dbbbab774e34384d10d_D20200326-20200326", "decimals": "INF", "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2101101 - Disclosure - Business and Basis of Presentation", "role": "http://transphormusa.com/role/BusinessandBasisofPresentation", "shortName": "Business and Basis of Presentation", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "i4ba6709844eb49109e1f6e79de32cbc8_D20200101-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2104102 - Disclosure - Summary of Significant Accounting Policies", "role": "http://transphormusa.com/role/SummaryofSignificantAccountingPolicies", "shortName": "Summary of Significant Accounting Policies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "none-20210120.htm", "contextRef": "ibd2194af189b4d9abf16c449a9884541_D20190101-20191231", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } } }, "segmentCount": 111, "tag": { "country_JP": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "JAPAN", "terseLabel": "JAPAN" } } }, "localname": "JP", "nsuri": "http://xbrl.sec.gov/country/2017-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "country_US": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "UNITED STATES", "terseLabel": "UNITED STATES" } } }, "localname": "US", "nsuri": "http://xbrl.sec.gov/country/2017-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag", "terseLabel": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Area code of city", "label": "City Area Code", "terseLabel": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Cover page.", "label": "Cover [Abstract]" } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "xbrltype": "stringItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type", "terseLabel": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityAddressAddressLine1": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Address Line 1 such as Attn, Building Name, Street Name", "label": "Entity Address, Address Line One", "terseLabel": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address, City or Town", "terseLabel": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address, Postal Zip Code", "terseLabel": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressStateOrProvince": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the state or province.", "label": "Entity Address, State or Province", "terseLabel": "Entity Address, State or Province" } } }, "localname": "EntityAddressStateOrProvince", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r458" ], "lang": { "en-us": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key", "terseLabel": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.", "label": "Entity [Domain]", "terseLabel": "Entity [Domain]" } } }, "localname": "EntityDomain", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r458" ], "lang": { "en-us": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company", "terseLabel": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntityExTransitionPeriod": { "auth_ref": [ "r459" ], "lang": { "en-us": { "role": { "documentation": "Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.", "label": "Entity Ex Transition Period", "terseLabel": "Entity Ex Transition Period" } } }, "localname": "EntityExTransitionPeriod", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r458" ], "lang": { "en-us": { "role": { "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Filer Category", "terseLabel": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityIncorporationStateCountryCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Two-character EDGAR code representing the state or country of incorporation.", "label": "Entity Incorporation, State or Country Code", "terseLabel": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r458" ], "lang": { "en-us": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name", "terseLabel": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r458" ], "lang": { "en-us": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business", "terseLabel": "Entity Small Business" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r458" ], "lang": { "en-us": { "role": { "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.", "label": "Entity Tax Identification Number", "terseLabel": "Entity Tax Identification Number" } } }, "localname": "EntityTaxIdentificationNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "employerIdItemType" }, "dei_LegalEntityAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The set of legal entities associated with a report.", "label": "Legal Entity [Axis]", "terseLabel": "Legal Entity [Axis]" } } }, "localname": "LegalEntityAxis", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "stringItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number", "terseLabel": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://transphormusa.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "none_AccountsPayablePurchaseCommitment": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accounts Payable, Purchase Commitment", "label": "Accounts Payable, Purchase Commitment", "terseLabel": "Accounts Payable, Purchase Commitment" } } }, "localname": "AccountsPayablePurchaseCommitment", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "none_AdditionalPaidInCapitalAfterMergerAdjustments": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Additional Paid In Capital, After Merger Adjustments", "label": "Additional Paid In Capital, After Merger Adjustments", "terseLabel": "Additional Paid In Capital, After Merger Adjustments" } } }, "localname": "AdditionalPaidInCapitalAfterMergerAdjustments", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "none_AgreementToMaintainAndContinueInBusinessTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Agreement To Maintain And Continue In Business, Term", "label": "Agreement To Maintain And Continue In Business, Term", "terseLabel": "Agreement to maintain and continue AFSW, term" } } }, "localname": "AgreementToMaintainAndContinueInBusinessTerm", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails" ], "xbrltype": "durationItemType" }, "none_CashAndCashEquivalentsAtCarryingValuePercentageInForeignCurrency": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Cash and Cash Equivalents, at Carrying Value, Percentage In Foreign Currency", "label": "Cash and Cash Equivalents, at Carrying Value, Percentage In Foreign Currency", "terseLabel": "Percentage of cash and cash equivalents in foreign subsidiary" } } }, "localname": "CashAndCashEquivalentsAtCarryingValuePercentageInForeignCurrency", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "percentItemType" }, "none_CollaborativeArrangementCounterpartyFundingCommitment": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Collaborative Arrangement, Counterparty Funding Commitment", "label": "Collaborative Arrangement, Counterparty Funding Commitment", "terseLabel": "Letter of intent for development activities" } } }, "localname": "CollaborativeArrangementCounterpartyFundingCommitment", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "none_CommitmentForServicesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Commitment For Services", "label": "Commitment For Services [Member]", "terseLabel": "Commitment For Services" } } }, "localname": "CommitmentForServicesMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_CommonStockForfeitedAndCancelled": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common Stock, Forfeited And Cancelled", "label": "Common Stock, Forfeited And Cancelled", "terseLabel": "Common stock, forfeited and cancelled (in shares)" } } }, "localname": "CommonStockForfeitedAndCancelled", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "sharesItemType" }, "none_CommonStockMergerConversionRateOfShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common Stock, Merger Conversion Rate Of Shares", "label": "Common Stock, Merger Conversion Rate Of Shares", "terseLabel": "Merger conversion rate (in shares)" } } }, "localname": "CommonStockMergerConversionRateOfShares", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "sharesItemType" }, "none_CommonStockholderMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common Stockholder", "label": "Common Stockholder [Member]", "terseLabel": "Common Stockholder" } } }, "localname": "CommonStockholderMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_ContractualMinimumNumberOfDaysBeforeClosing": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contractual Minimum Number of Days Before Closing", "label": "Contractual Minimum Number of Days Before Closing", "terseLabel": "Minimum number of days before closing" } } }, "localname": "ContractualMinimumNumberOfDaysBeforeClosing", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "durationItemType" }, "none_ConversionRateOptionsAndWarrants": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Conversion Rate, Options And Warrants", "label": "Conversion Rate, Options And Warrants", "terseLabel": "Conversion rate for options and warrants" } } }, "localname": "ConversionRateOptionsAndWarrants", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "pureItemType" }, "none_ConvertiblePreferredStockholderMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Convertible Preferred Stockholder", "label": "Convertible Preferred Stockholder [Member]", "terseLabel": "Convertible Preferred Stockholder" } } }, "localname": "ConvertiblePreferredStockholderMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_CustomerAMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Customer A", "label": "Customer A [Member]", "terseLabel": "Customer A" } } }, "localname": "CustomerAMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "none_CustomerBMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Customer B", "label": "Customer B [Member]", "terseLabel": "Customer B" } } }, "localname": "CustomerBMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "none_CustomerEMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Customer E", "label": "Customer E [Member]", "terseLabel": "Customer C" } } }, "localname": "CustomerEMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "none_CustomerFMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Customer F", "label": "Customer F [Member]", "terseLabel": "Customer D" } } }, "localname": "CustomerFMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "none_DebtInstrumentQualifiedFinancingLimitOfEstimatedEnterpriseValueMaximum": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Qualified Financing, Limit of Estimated Enterprise Value, Maximum", "label": "Debt Instrument, Qualified Financing, Limit of Estimated Enterprise Value, Maximum", "terseLabel": "Upper limit of estimated enterprise value" } } }, "localname": "DebtInstrumentQualifiedFinancingLimitOfEstimatedEnterpriseValueMaximum", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "none_DebtInstrumentQualifiedFinancingLimitOfEstimatedEnterpriseValueMinimum": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Qualified Financing, Limit Of Estimated Enterprise Value, Minimum", "label": "Debt Instrument, Qualified Financing, Limit Of Estimated Enterprise Value, Minimum", "terseLabel": "Lower limit of estimated enterprise value" } } }, "localname": "DebtInstrumentQualifiedFinancingLimitOfEstimatedEnterpriseValueMinimum", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "none_DebtInstrumentQualifiedFinancingPercentageOfPricePerShare": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Qualified Financing, Percentage Of Price Per Share", "label": "Debt Instrument, Qualified Financing, Percentage Of Price Per Share", "terseLabel": "Percent of price paid by purchasers of preferred stock" } } }, "localname": "DebtInstrumentQualifiedFinancingPercentageOfPricePerShare", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "none_DeferredRevenueMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Deferred Revenue", "label": "Deferred Revenue [Member]", "terseLabel": "Deferred Revenue" } } }, "localname": "DeferredRevenueMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_DeferredTaxAssetsValuationAllowanceBeforeAdjustments": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Deferred Tax Assets, Valuation Allowance Before Adjustments", "label": "Deferred Tax Assets, Valuation Allowance Before Adjustments", "terseLabel": "Deferred tax assets, valuation allowance before adjustments" } } }, "localname": "DeferredTaxAssetsValuationAllowanceBeforeAdjustments", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "none_DepreciationAndAmortizationOnPropertyPlantAndEquipment": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Depreciation And Amortization On Property, Plant, And Equipment", "label": "Depreciation And Amortization On Property, Plant, And Equipment", "terseLabel": "Depreciation and amortization related to property, plant, and equipment" } } }, "localname": "DepreciationAndAmortizationOnPropertyPlantAndEquipment", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "none_DevelopedTechnology150VMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Developed Technology - 150V", "label": "Developed Technology - 150V [Member]", "terseLabel": "Developed technology - 150V" } } }, "localname": "DevelopedTechnology150VMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "none_DevelopedTechnology600VMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Developed Technology - 600V", "label": "Developed Technology - 600V [Member]", "terseLabel": "Developed technology - 600V" } } }, "localname": "DevelopedTechnology600VMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "none_EPIGen4WaferGrowthSalesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "EPI Gen 4 Wafer Growth Sales", "label": "EPI Gen 4 Wafer Growth Sales [Member]", "terseLabel": "EPI Gen 4 Wafer Growth Sales [Member]" } } }, "localname": "EPIGen4WaferGrowthSalesMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_EffectOfExchangeRateOnVariableInterestEntityEarnings": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Effect Of Exchange Rate On Variable Interest Entity Earnings", "label": "Effect Of Exchange Rate On Variable Interest Entity Earnings", "terseLabel": "Effect of exchange rate change" } } }, "localname": "EffectOfExchangeRateOnVariableInterestEntityEarnings", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails" ], "xbrltype": "monetaryItemType" }, "none_EffectiveIncomeTaxRateReconciliationLossOnJointVenturePercent": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": 7.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Loss On Joint Venture, Percent", "label": "Effective Income Tax Rate Reconciliation, Loss On Joint Venture, Percent", "terseLabel": "Loss in joint venture" } } }, "localname": "EffectiveIncomeTaxRateReconciliationLossOnJointVenturePercent", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "none_EmployeeWagesAndBenefitExpenseMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Employee Wages and Benefit Expense", "label": "Employee Wages and Benefit Expense [Member]", "terseLabel": "Reimbursement from payroll related costs" } } }, "localname": "EmployeeWagesAndBenefitExpenseMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_EstimatedTimeOfRegulatoryApprovalMaximum": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Estimated Time Of Regulatory Approval, Maximum", "label": "Estimated Time Of Regulatory Approval, Maximum", "terseLabel": "Estimated time of regulatory approval, maximum" } } }, "localname": "EstimatedTimeOfRegulatoryApprovalMaximum", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "durationItemType" }, "none_EstimatedTimeOfRegulatoryApprovalMinimum": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Estimated Time Of Regulatory Approval, Minimum", "label": "Estimated Time Of Regulatory Approval, Minimum", "terseLabel": "Estimated time of regulatory approval, minimum" } } }, "localname": "EstimatedTimeOfRegulatoryApprovalMinimum", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "durationItemType" }, "none_ExpirationDate1Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Expiration Date 1", "label": "Expiration Date 1 [Member]", "terseLabel": "November 2020" } } }, "localname": "ExpirationDate1Member", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "domainItemType" }, "none_ExpirationDate2Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Expiration Date 2", "label": "Expiration Date 2 [Member]", "terseLabel": "February 2025" } } }, "localname": "ExpirationDate2Member", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "domainItemType" }, "none_ExpirationDate3Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Expiration Date 3", "label": "Expiration Date 3 [Member]", "terseLabel": "February 2025" } } }, "localname": "ExpirationDate3Member", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "domainItemType" }, "none_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestPayable": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability, Interest Expense Accrued", "label": "Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability, Interest Payable", "terseLabel": "Interest expense accrued" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestPayable", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "monetaryItemType" }, "none_FiniteLivedIntangibleAssetsAccumulatedChangeInForeignExchangeRate": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails": { "order": 3.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Finite Lived Intangible Assets, Accumulated Change in Foreign Exchange Rate", "label": "Finite Lived Intangible Assets, Accumulated Change in Foreign Exchange Rate", "negatedTerseLabel": "Foreign Exchange Rate Changes" } } }, "localname": "FiniteLivedIntangibleAssetsAccumulatedChangeInForeignExchangeRate", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "none_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails": { "order": 3.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Finite-Lived Intangible Assets, Amortization Expense, After Year Four", "label": "Finite-Lived Intangible Assets, Amortization Expense, After Year Four", "terseLabel": "Thereafter" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails" ], "xbrltype": "monetaryItemType" }, "none_FujitsuSemiconductorLimitedMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fujitsu Semiconductor Limited", "label": "Fujitsu Semiconductor Limited [Member]", "terseLabel": "Fujitsu Semiconductor Limited" } } }, "localname": "FujitsuSemiconductorLimitedMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "none_IIDANoteMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "IIDA Note", "label": "IIDA Note [Member]", "terseLabel": "IIDA Note" } } }, "localname": "IIDANoteMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "none_InvestmentsByConsolidatedAndNonconsolidatedEntitiesAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Investments By Consolidated And Nonconsolidated Entities", "label": "Investments By Consolidated And Nonconsolidated Entities [Axis]", "terseLabel": "Investments By Consolidated And Nonconsolidated Entities [Axis]" } } }, "localname": "InvestmentsByConsolidatedAndNonconsolidatedEntitiesAxis", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "stringItemType" }, "none_InvestmentsByConsolidatedEntitiesDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Investments By Consolidated Entities", "label": "Investments By Consolidated Entities [Domain]", "terseLabel": "Investments By Consolidated Entities [Domain]" } } }, "localname": "InvestmentsByConsolidatedEntitiesDomain", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "domainItemType" }, "none_JointVentureAgreementCallOptionExercisePrice": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Joint Venture Agreement, Call Option, Exercise Price", "label": "Joint Venture Agreement, Call Option, Exercise Price", "terseLabel": "Expected exercise price under certain conditions" } } }, "localname": "JointVentureAgreementCallOptionExercisePrice", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "none_JointVentureAgreementPutAndCallRightsTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Joint Venture Agreement, Put and Call Rights, Term", "label": "Joint Venture Agreement, Put and Call Rights, Term", "terseLabel": "Put and call rights term" } } }, "localname": "JointVentureAgreementPutAndCallRightsTerm", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails" ], "xbrltype": "durationItemType" }, "none_KKRPhormInvestorsLPKKRMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "KKR Phorm Investors L.P. (KKR)", "label": "KKR Phorm Investors L.P. (KKR) [Member]", "terseLabel": "KKR Phorm Investors L.P. (KKR)" } } }, "localname": "KKRPhormInvestorsLPKKRMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "domainItemType" }, "none_LetterOfIntentCurrentYearCommitmentToProvideFunding": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Letter Of Intent, Current Year Commitment To Provide Funding", "label": "Letter Of Intent, Current Year Commitment To Provide Funding", "terseLabel": "Letter of intent to provide funding" } } }, "localname": "LetterOfIntentCurrentYearCommitmentToProvideFunding", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "none_LicenseFeeIncomeMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "License Fee Income", "label": "License Fee Income [Member]", "terseLabel": "License Fee Income" } } }, "localname": "LicenseFeeIncomeMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_LicenseMaintenanceFeeMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "License Maintenance Fee", "label": "License Maintenance Fee [Member]", "terseLabel": "License Maintenance Fee" } } }, "localname": "LicenseMaintenanceFeeMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_LicensingRevenueFromRelatedParties": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 12.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Licensing Revenue From Related Parties", "label": "Licensing Revenue From Related Parties", "negatedTerseLabel": "Licensing Revenue From Related Parties" } } }, "localname": "LicensingRevenueFromRelatedParties", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "none_LoanAndSecurityAgreementLSAMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Loan And Security Agreement (LSA)", "label": "Loan And Security Agreement (LSA) [Member]", "terseLabel": "Loan and Security Agreement (LSA)" } } }, "localname": "LoanAndSecurityAgreementLSAMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "none_NexperiaMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Nexperia", "label": "Nexperia [Member]", "terseLabel": "Nexperia" } } }, "localname": "NexperiaMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "domainItemType" }, "none_NoncontrollingCommonStockholderAndNoteholderMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Noncontrolling Common Stockholder And Noteholder", "label": "Noncontrolling Common Stockholder And Noteholder [Member]", "terseLabel": "Noncontrolling Common Stockholder And Noteholder" } } }, "localname": "NoncontrollingCommonStockholderAndNoteholderMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_NoncontrollingCommonStockholderMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Noncontrolling Common Stockholder", "label": "Noncontrolling Common Stockholder [Member]", "terseLabel": "Noncontrolling Common Stockholder" } } }, "localname": "NoncontrollingCommonStockholderMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_OperatingLossCarryforwardsSubjectToExpiration": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Operating Loss Carryforwards Subject To Expiration", "label": "Operating Loss Carryforwards Subject To Expiration", "terseLabel": "Operating loss carryforwards subject to expiration" } } }, "localname": "OperatingLossCarryforwardsSubjectToExpiration", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "none_OtherInvestorsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Other Investors", "label": "Other Investors [Member]", "terseLabel": "Other Investors" } } }, "localname": "OtherInvestorsMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "domainItemType" }, "none_OtherReceivableMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Other Receivable", "label": "Other Receivable [Member]", "terseLabel": "Other Receivable" } } }, "localname": "OtherReceivableMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_PrivatePlacementIssuanceCosts": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Private Placement Issuance Costs", "label": "Private Placement Issuance Costs", "terseLabel": "Private placement offering cost" } } }, "localname": "PrivatePlacementIssuanceCosts", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "none_ProceedsFromIssuanceOfQualifiedFundingGross": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Proceeds From Issuance of Qualified Funding, Gross", "label": "Proceeds From Issuance of Qualified Funding, Gross", "terseLabel": "Proceeds from qualified financing" } } }, "localname": "ProceedsFromIssuanceOfQualifiedFundingGross", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "none_PurchaseCommitmentAmount": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Purchase Commitment, Amount", "label": "Purchase Commitment, Amount", "terseLabel": "Commitment to acquire equipment and services from vendors" } } }, "localname": "PurchaseCommitmentAmount", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "none_PurchaseCommitmentAmountReimbursed": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Purchase Commitment, Amount Reimbursed", "label": "Purchase Commitment, Amount Reimbursed", "terseLabel": "Purchase Commitment, Amount Reimbursed" } } }, "localname": "PurchaseCommitmentAmountReimbursed", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "none_PurchaseCommitmentEquipmentPurchaseAndReimbursement": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Purchase Commitment, Equipment Purchase And Reimbursement", "label": "Purchase Commitment, Equipment Purchase And Reimbursement", "terseLabel": "Equipment purchased" } } }, "localname": "PurchaseCommitmentEquipmentPurchaseAndReimbursement", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "none_ReimbursementOfResearchAndDevelopmentExpenseMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reimbursement Of Research and Development Expense", "label": "Reimbursement Of Research and Development Expense [Member]", "terseLabel": "Reimbursement for research and development" } } }, "localname": "ReimbursementOfResearchAndDevelopmentExpenseMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_ReimbursementsInLicenseMaintenanceMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reimbursements In License Maintenance", "label": "Reimbursements In License Maintenance [Member]", "terseLabel": "Reimbursements In License Maintenance [Member]" } } }, "localname": "ReimbursementsInLicenseMaintenanceMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_RelatedPartyServicesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Related Party Services", "label": "Related Party Services [Member]", "terseLabel": "Related Party Services" } } }, "localname": "RelatedPartyServicesMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_RelatedPartyTransactionReductionOfExpensesFromTransactionsWithRelatedParty": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Related Party Transaction, Reduction Of Expenses From Transactions With Related Party", "label": "Related Party Transaction, Reduction Of Expenses From Transactions With Related Party", "terseLabel": "Related Party Transaction, Reduction Of Expenses From Transactions With Related Party" } } }, "localname": "RelatedPartyTransactionReductionOfExpensesFromTransactionsWithRelatedParty", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "none_ResearchAndDevelopmentExpenseReimbursement": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Research And Development Expense Reimbursement", "label": "Research And Development Expense Reimbursement", "terseLabel": "Grant reimbursement" } } }, "localname": "ResearchAndDevelopmentExpenseReimbursement", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "monetaryItemType" }, "none_RevenueFromContractWithCustomerCumulativeImpactOfRateChange": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Revenue From Contract With Customer, Cumulative Impact Of Rate Change", "label": "Revenue From Contract With Customer, Cumulative Impact Of Rate Change", "terseLabel": "Revenue From Contract With Customer, Cumulative Impact Of Rate Change" } } }, "localname": "RevenueFromContractWithCustomerCumulativeImpactOfRateChange", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "monetaryItemType" }, "none_SCINoteMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "SCI Note", "label": "SCI Note [Member]", "terseLabel": "SCI Note" } } }, "localname": "SCINoteMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "none_SaleOfProductsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Sale of Products", "label": "Sale of Products [Member]", "terseLabel": "Sale of Products" } } }, "localname": "SaleOfProductsMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "none_SaleOfStockSharesAuthorizedToBeSold": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Sale Of Stock, Shares Authorized To Be Sold", "label": "Sale Of Stock, Shares Authorized To Be Sold", "terseLabel": "Sale Of Stock, Shares Authorized To Be Sold" } } }, "localname": "SaleOfStockSharesAuthorizedToBeSold", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "none_Series1PreferredStockMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Series 1 Preferred Stock", "label": "Series 1 Preferred Stock [Member]", "terseLabel": "Series 1 Preferred Stock" } } }, "localname": "Series1PreferredStockMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "domainItemType" }, "none_Series2PreferredStockMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Series 2 Preferred Stock", "label": "Series 2 Preferred Stock [Member]", "terseLabel": "Series 2 Preferred Stock" } } }, "localname": "Series2PreferredStockMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "domainItemType" }, "none_Series3PreferredStockMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Series 3 Preferred Stock", "label": "Series 3 Preferred Stock [Member]", "terseLabel": "Series 3 Preferred Stock" } } }, "localname": "Series3PreferredStockMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/NexperiaArrangementDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "domainItemType" }, "none_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualNumberOfAdditionalSharesAuthorized": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Annual Number of Additional Shares Authorized", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Annual Number of Additional Shares Authorized", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Annual Number of Additional Shares Authorized" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualNumberOfAdditionalSharesAuthorized", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "sharesItemType" }, "none_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualSharesAuthorizedPercentOfOutstandingShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-based Compensation Arrangement By Share-based Payment Award, Annual Shares Authorized, Percent Of Outstanding Shares", "label": "Share-based Compensation Arrangement By Share-based Payment Award, Annual Shares Authorized, Percent Of Outstanding Shares", "terseLabel": "Share-based Compensation Arrangement By Share-based Payment Award, Annual Shares Authorized, Percent Of Outstanding Shares" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualSharesAuthorizedPercentOfOutstandingShares", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "percentItemType" }, "none_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePricePercentFairMarketValue": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-Based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Exercise Price, Percent Fair Market Value", "label": "Share-Based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Exercise Price, Percent Fair Market Value", "terseLabel": "Minimum percentage of fair market value of common stock" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePricePercentFairMarketValue", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "percentItemType" }, "none_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Weighted Average Grant Date Fair Value", "label": "Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted average grant date fair value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "perShareItemType" }, "none_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageRemainingContractualTermAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term", "label": "Share-Based Compensation Arrangement By Share-Based Payment Award, Weighted Average Remaining Contractual Term [Abstract]", "terseLabel": "Weighted Average Remaining Contractual Term (in Years)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageRemainingContractualTermAbstract", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "stringItemType" }, "none_StockIssuedDuringPeriodSharesNewIssuesRelatedToMerger": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock Issued During Period, Shares, New Issues Related To Merger", "label": "Stock Issued During Period, Shares, New Issues Related To Merger", "terseLabel": "Shares issued in connection with the Reverse Merger (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesNewIssuesRelatedToMerger", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "none_StockIssuedDuringPeriodValueNewIssuesRelatedToMerger": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Stock Issued During Period, Value, New Issues Related To Merger", "label": "Stock Issued During Period, Value, New Issues Related To Merger", "terseLabel": "Stock Issued During Period, Value, New Issues Related To Merger" } } }, "localname": "StockIssuedDuringPeriodValueNewIssuesRelatedToMerger", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "none_StockholdersEquityAttributableToParentIncludingMergerAdjustments": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Stockholders' Equity Attributable To Parent Including Merger Adjustments", "label": "Stockholders' Equity Attributable To Parent Including Merger Adjustments", "periodEndLabel": "Ending Balance", "periodStartLabel": "Beginning Balance" } } }, "localname": "StockholdersEquityAttributableToParentIncludingMergerAdjustments", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "none_SummaryOfVariableInterestEntitiesRollForward": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Summary of Variable Interest Entities", "label": "Summary of Variable Interest Entities [Roll Forward]", "terseLabel": "Summary of Variable Interest Entities [Roll Forward]" } } }, "localname": "SummaryOfVariableInterestEntitiesRollForward", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails" ], "xbrltype": "stringItemType" }, "none_TemporaryEquityConversionBasisMinimumAggregateProceedsOfUnderwrittenPublicOfferingOfCommonStock": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Temporary Equity, Conversion Basis, Minimum Aggregate Proceeds Of Underwritten Public Offering Of Common Stock", "label": "Temporary Equity, Conversion Basis, Minimum Aggregate Proceeds Of Underwritten Public Offering Of Common Stock", "terseLabel": "Underwritten public offering of common stock, minimum aggregate net proceeds" } } }, "localname": "TemporaryEquityConversionBasisMinimumAggregateProceedsOfUnderwrittenPublicOfferingOfCommonStock", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "none_TemporaryEquityConversionBasisMinimumAggregateProceedsOfUnderwrittenPublicOfferingOfStock": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Temporary Equity, Conversion Basis, Minimum Aggregate Proceeds Of Underwritten Public Offering Of Stock", "label": "Temporary Equity, Conversion Basis, Minimum Aggregate Proceeds Of Underwritten Public Offering Of Stock", "terseLabel": "Minimum aggregate proceeds of underwritten public offering of stock" } } }, "localname": "TemporaryEquityConversionBasisMinimumAggregateProceedsOfUnderwrittenPublicOfferingOfStock", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "none_TemporaryEquityConversionBasisOfferingPriceMinimumRatioToOriginalIssuePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Temporary Equity, Conversion Basis, Offering Price Minimum, Ratio to Original Issue Price", "label": "Temporary Equity, Conversion Basis, Offering Price Minimum, Ratio to Original Issue Price", "terseLabel": "Minimum ratio offering price per share of OIP" } } }, "localname": "TemporaryEquityConversionBasisOfferingPriceMinimumRatioToOriginalIssuePrice", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "pureItemType" }, "none_TemporaryEquityConvertiblePreferredStockDividendRate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Temporary Equity, Convertible Preferred Stock, Dividend Rate", "label": "Temporary Equity, Convertible Preferred Stock, Dividend Rate", "terseLabel": "Convertible preferred stock, dividend rate" } } }, "localname": "TemporaryEquityConvertiblePreferredStockDividendRate", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "perShareItemType" }, "none_TemporaryEquityTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Temporary Equity", "label": "Temporary Equity [Text Block]", "terseLabel": "Convertible Preferred Stock" } } }, "localname": "TemporaryEquityTextBlock", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStock" ], "xbrltype": "textBlockItemType" }, "none_The2007PlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The 2007 Plan", "label": "The 2007 Plan [Member]", "terseLabel": "The 2007 Plan" } } }, "localname": "The2007PlanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "domainItemType" }, "none_The2015PlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The 2015 Plan", "label": "The 2015 Plan [Member]", "terseLabel": "The 2015 Plan" } } }, "localname": "The2015PlanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "domainItemType" }, "none_The2020EquityIncentivePlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The 2020 Equity Incentive Plan", "label": "The 2020 Equity Incentive Plan [Member]", "terseLabel": "The 2020 Equity Incentive Plan" } } }, "localname": "The2020EquityIncentivePlanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "none_TrancheALoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tranche A Loan", "label": "Tranche A Loan [Member]", "terseLabel": "Tranche A Loan" } } }, "localname": "TrancheALoanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/NexperiaArrangementDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "none_TrancheB1LoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tranche B-1 Loan", "label": "Tranche B-1 Loan [Member]", "terseLabel": "Tranche B-1 Loan" } } }, "localname": "TrancheB1LoanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "domainItemType" }, "none_TrancheBLoanAfterMergerMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tranche B Loan After Merger", "label": "Tranche B Loan After Merger [Member]", "terseLabel": "Tranche B Loan After Merger [Member]" } } }, "localname": "TrancheBLoanAfterMergerMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "domainItemType" }, "none_TrancheBLoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tranche B Loan", "label": "Tranche B Loan [Member]", "terseLabel": "Tranche B Loan" } } }, "localname": "TrancheBLoanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "domainItemType" }, "none_TrancheCLoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tranche C Loan", "label": "Tranche C Loan [Member]", "terseLabel": "Tranche C Loan" } } }, "localname": "TrancheCLoanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "domainItemType" }, "none_TrancheCNoteMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tranche C Note", "label": "Tranche C Note [Member]", "terseLabel": "Tranche C Note" } } }, "localname": "TrancheCNoteMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "none_TransphormAilzuIncMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transphorm Ailzu, Inc.", "label": "Transphorm Ailzu, Inc. [Member]", "terseLabel": "Transphorm Aizu, Inc." } } }, "localname": "TransphormAilzuIncMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "none_TransphormEpiIncMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transphorm Epi, Inc.", "label": "Transphorm Epi, Inc. [Member]", "terseLabel": "Transphorm Epi, Inc." } } }, "localname": "TransphormEpiIncMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "none_TransphormIncMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transphorm, Inc.", "label": "Transphorm, Inc. [Member]", "terseLabel": "Transphorm, Inc." } } }, "localname": "TransphormIncMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "domainItemType" }, "none_TransphormJapanIncMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transphorm Japan, Inc.", "label": "Transphorm Japan, Inc. [Member]", "terseLabel": "Transphorm Japan, Inc." } } }, "localname": "TransphormJapanIncMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "none_TransphormTechnology2007StockPlanAnd2015EquityIncentivePlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transphorm Technology 2007 Stock Plan and 2015 Equity Incentive Plan", "label": "Transphorm Technology 2007 Stock Plan and 2015 Equity Incentive Plan [Member]", "terseLabel": "Transphorm Technology 2007 Stock Plan and 2015 Equity Incentive Plan" } } }, "localname": "TransphormTechnology2007StockPlanAnd2015EquityIncentivePlanMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "domainItemType" }, "none_TransphormTechnologyMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transphorm Technology", "label": "Transphorm Technology [Member]", "terseLabel": "Transphorm Technology" } } }, "localname": "TransphormTechnologyMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "none_VariableInterestEntityAdditionalPurchaseOfOwnershipInterestPercentage": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Variable Interest Entity, Additional Purchase of Ownership Interest, Percentage", "label": "Variable Interest Entity, Additional Purchase of Ownership Interest, Percentage", "terseLabel": "Purchase of additional interest" } } }, "localname": "VariableInterestEntityAdditionalPurchaseOfOwnershipInterestPercentage", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "none_YaskawaMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Yaskawa", "label": "Yaskawa [Member]", "terseLabel": "Yaskawa" } } }, "localname": "YaskawaMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "none_YaskawaNoteMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Yaskawa Note", "label": "Yaskawa Note [Member]", "terseLabel": "Yaskawa Note" } } }, "localname": "YaskawaNoteMember", "nsuri": "http://transphormusa.com/20210120", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails" ], "xbrltype": "domainItemType" }, "srt_ConsolidatedEntitiesAxis": { "auth_ref": [ "r456" ], "lang": { "en-us": { "role": { "label": "Consolidated Entities [Axis]", "terseLabel": "Consolidated Entities [Axis]" } } }, "localname": "ConsolidatedEntitiesAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "srt_ConsolidatedEntitiesDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Consolidated Entities [Domain]", "terseLabel": "Consolidated Entities [Domain]" } } }, "localname": "ConsolidatedEntitiesDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "srt_CounterpartyNameAxis": { "auth_ref": [ "r70", "r127" ], "lang": { "en-us": { "role": { "label": "Counterparty Name [Axis]", "terseLabel": "Counterparty Name [Axis]" } } }, "localname": "CounterpartyNameAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "srt_MajorCustomersAxis": { "auth_ref": [ "r171", "r242", "r247", "r446" ], "lang": { "en-us": { "role": { "label": "Customer [Axis]", "terseLabel": "Customer [Axis]" } } }, "localname": "MajorCustomersAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "stringItemType" }, "srt_MaximumMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "domainItemType" }, "srt_NameOfMajorCustomerDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Customer [Domain]", "terseLabel": "Customer [Domain]" } } }, "localname": "NameOfMajorCustomerDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "srt_OwnershipAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Ownership [Axis]", "terseLabel": "Ownership [Axis]" } } }, "localname": "OwnershipAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "stringItemType" }, "srt_OwnershipDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Ownership [Domain]", "terseLabel": "Ownership [Domain]" } } }, "localname": "OwnershipDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r169", "r242", "r245", "r443", "r444" ], "lang": { "en-us": { "role": { "label": "Product and Service [Axis]", "terseLabel": "Product and Service [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Product and Service [Domain]", "terseLabel": "Product and Service [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "domainItemType" }, "srt_RepurchaseAgreementCounterpartyNameDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Counterparty Name [Domain]", "terseLabel": "Counterparty Name [Domain]" } } }, "localname": "RepurchaseAgreementCounterpartyNameDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "srt_RestatementAdjustmentMember": { "auth_ref": [ "r137", "r138", "r139", "r140" ], "lang": { "en-us": { "role": { "label": "Restatement Adjustment [Member]", "terseLabel": "Restatement Adjustment" } } }, "localname": "RestatementAdjustmentMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "domainItemType" }, "srt_RestatementAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Restatement [Axis]", "terseLabel": "Restatement [Axis]" } } }, "localname": "RestatementAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "stringItemType" }, "srt_RestatementDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Restatement [Domain]", "terseLabel": "Restatement [Domain]" } } }, "localname": "RestatementDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "domainItemType" }, "srt_ScenarioForecastMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Forecast [Member]", "terseLabel": "Forecast" } } }, "localname": "ScenarioForecastMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "srt_ScenarioPreviouslyReportedMember": { "auth_ref": [ "r138", "r139", "r140" ], "lang": { "en-us": { "role": { "label": "Previously Reported [Member]", "terseLabel": "Previously Reported" } } }, "localname": "ScenarioPreviouslyReportedMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "domainItemType" }, "srt_ScenarioUnspecifiedDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Scenario [Domain]", "terseLabel": "Scenario [Domain]" } } }, "localname": "ScenarioUnspecifiedDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "srt_SegmentGeographicalDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Geographical [Domain]", "terseLabel": "Geographical [Domain]" } } }, "localname": "SegmentGeographicalDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "srt_StatementGeographicalAxis": { "auth_ref": [ "r170", "r242", "r246", "r445", "r453", "r455" ], "lang": { "en-us": { "role": { "label": "Geographical [Axis]", "terseLabel": "Geographical [Axis]" } } }, "localname": "StatementGeographicalAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "stringItemType" }, "srt_StatementScenarioAxis": { "auth_ref": [ "r217", "r392" ], "lang": { "en-us": { "role": { "label": "Scenario [Axis]", "terseLabel": "Scenario [Axis]" } } }, "localname": "StatementScenarioAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccountingPoliciesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Accounting Policies [Abstract]" } } }, "localname": "AccountingPoliciesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent": { "auth_ref": [ "r53" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.", "label": "Accounts Payable and Accrued Liabilities, Current", "terseLabel": "Accounts payable and accrued expenses" } } }, "localname": "AccountsPayableAndAccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsPayableAndAccruedLiabilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing accounts payable and accrued liabilities.", "label": "Accounts Payable and Accrued Liabilities [Member]", "terseLabel": "Accounts Payable and Accrued Liabilities [Member]" } } }, "localname": "AccountsPayableAndAccruedLiabilitiesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent": { "auth_ref": [ "r134", "r384", "r420", "r440" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount for accounts payable to related parties.", "label": "Accounts Payable, Related Parties", "terseLabel": "Accounts payable to related party" } } }, "localname": "AccountsPayableRelatedPartiesCurrentAndNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Due from customers or clients for goods or services that have been delivered or sold.", "label": "Accounts Receivable [Member]", "terseLabel": "Accounts Receivable" } } }, "localname": "AccountsReceivableMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountsReceivableRelatedParties": { "auth_ref": [ "r29", "r125", "r384", "r386", "r387", "r435" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "For an unclassified balance sheet, amount of receivables arising from transactions with related parties.", "label": "Accounts Receivable, Related Parties", "terseLabel": "Accounts receivable due from related party" } } }, "localname": "AccountsReceivableRelatedParties", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "auth_ref": [ "r50", "r210" ], "calculation": { "http://transphormusa.com/role/PropertyandEquipmentDetails": { "order": 1.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.", "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment", "negatedLabel": "Less: accumulated depreciation and amortization" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r72", "r73", "r74" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.", "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax", "terseLabel": "Accumulated other comprehensive loss" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r71", "r74", "r75", "r327" ], "lang": { "en-us": { "role": { "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.", "label": "AOCI Attributable to Parent [Member]", "terseLabel": "Accumulated Other Comprehensive (Loss) Income" } } }, "localname": "AccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalCashFlowElementsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Additional Cash Flow Elements [Abstract]", "terseLabel": "Supplemental non-cash financing activity:" } } }, "localname": "AdditionalCashFlowElementsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "stringItemType" }, "us-gaap_AdditionalPaidInCapital": { "auth_ref": [ "r31" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.", "label": "Additional Paid in Capital", "terseLabel": "Additional paid-in capital" } } }, "localname": "AdditionalPaidInCapital", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.", "label": "Additional Paid-in Capital [Member]", "terseLabel": "Additional Paid-in Capital" } } }, "localname": "AdditionalPaidInCapitalMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement.", "label": "APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition", "terseLabel": "Stock-based compensation" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Adjustments to reconcile net loss to net cash used in operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "stringItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r255", "r282", "r287" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.", "label": "Share-based Payment Arrangement, Expense", "terseLabel": "Stock based compensation expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivable": { "auth_ref": [ "r176", "r182", "r183", "r185" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of allowance for credit loss on accounts receivable.", "label": "Accounts Receivable, Allowance for Credit Loss", "terseLabel": "Accounts Receivable, Allowance for Credit Loss" } } }, "localname": "AllowanceForDoubtfulAccountsReceivable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfIntangibleAssets": { "auth_ref": [ "r111", "r198", "r204" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Amortization of Intangible Assets", "terseLabel": "Amortization expense" } } }, "localname": "AmortizationOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "auth_ref": [ "r142" ], "lang": { "en-us": { "role": { "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.", "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount", "terseLabel": "Number of anti-dilutive shares (in shares)" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": { "auth_ref": [ "r142" ], "lang": { "en-us": { "role": { "documentation": "Information by type of antidilutive security.", "label": "Antidilutive Securities [Axis]", "terseLabel": "Antidilutive Securities [Axis]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesNameDomain": { "auth_ref": [ "r142" ], "lang": { "en-us": { "role": { "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.", "label": "Antidilutive Securities, Name [Domain]", "terseLabel": "Antidilutive Securities, Name [Domain]" } } }, "localname": "AntidilutiveSecuritiesNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Assets": { "auth_ref": [ "r166", "r412", "r430" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets", "totalLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets [Abstract]", "terseLabel": "Assets" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsCurrent": { "auth_ref": [ "r4", "r5", "r69" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets, Current", "terseLabel": "Assets, Current", "totalLabel": "Total current assets" } } }, "localname": "AssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsCurrentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets, Current [Abstract]", "terseLabel": "Current assets:" } } }, "localname": "AssetsCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsNoncurrent": { "auth_ref": [ "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer.", "label": "Assets, Noncurrent", "terseLabel": "Long-term assets" } } }, "localname": "AssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r256", "r284" ], "lang": { "en-us": { "role": { "documentation": "Information by type of award under share-based payment arrangement.", "label": "Award Type [Axis]", "terseLabel": "Award Type [Axis]" } } }, "localname": "AwardTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by location on balance sheet (statement of financial position).", "label": "Balance Sheet Location [Axis]", "terseLabel": "Balance Sheet Location [Axis]" } } }, "localname": "BalanceSheetLocationAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationDomain": { "auth_ref": [ "r344", "r345" ], "lang": { "en-us": { "role": { "documentation": "Location in the balance sheet (statement of financial position).", "label": "Balance Sheet Location [Domain]", "terseLabel": "Balance Sheet Location [Domain]" } } }, "localname": "BalanceSheetLocationDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CapitalUnitsAuthorized": { "auth_ref": [ "r450" ], "lang": { "en-us": { "role": { "documentation": "Number of authorized capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies.", "label": "Capital Units, Authorized", "terseLabel": "Total common and preferred stock authorized for issuance (in shares)" } } }, "localname": "CapitalUnitsAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_Cash": { "auth_ref": [ "r46", "r448", "r449" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.", "label": "Cash", "terseLabel": "Cash included in other assets" } } }, "localname": "Cash", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r2", "r46", "r113" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.", "label": "Cash and Cash Equivalents, at Carrying Value", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsPolicyTextBlock": { "auth_ref": [ "r10", "r114", "r120" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.", "label": "Cash and Cash Equivalents, Policy [Policy Text Block]", "terseLabel": "Cash and Cash Equivalents" } } }, "localname": "CashAndCashEquivalentsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r106", "r113", "r119" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents", "periodEndLabel": "Cash and cash equivalents at end of year", "periodStartLabel": "Cash and cash equivalents at beginning of year" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r106", "r371" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect", "totalLabel": "Net decrease in cash and cash equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ClassOfStockDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.", "label": "Class of Stock [Domain]", "terseLabel": "Class of Stock [Domain]" } } }, "localname": "ClassOfStockDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/NexperiaArrangementDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ClassOfStockLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Class of Stock [Line Items]", "terseLabel": "Class of Stock [Line Items]" } } }, "localname": "ClassOfStockLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails", "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ClassOfWarrantOrRightAxis": { "auth_ref": [ "r133", "r237", "r254" ], "lang": { "en-us": { "role": { "documentation": "Information by type of warrant or right issued.", "label": "Class of Warrant or Right [Axis]", "terseLabel": "Class of Warrant or Right [Axis]" } } }, "localname": "ClassOfWarrantOrRightAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails", "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ClassOfWarrantOrRightDomain": { "auth_ref": [ "r124" ], "lang": { "en-us": { "role": { "documentation": "Name of the class or type of warrant or right outstanding. Warrants and rights represent derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months.", "label": "Class of Warrant or Right [Domain]", "terseLabel": "Class of Warrant or Right [Domain]" } } }, "localname": "ClassOfWarrantOrRightDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails", "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": { "auth_ref": [ "r132" ], "lang": { "en-us": { "role": { "documentation": "Exercise price per share or per unit of warrants or rights outstanding.", "label": "Class of Warrant or Right, Exercise Price of Warrants or Rights", "terseLabel": "Exercise price (in usd per share)" } } }, "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ClassOfWarrantOrRightOutstanding": { "auth_ref": [ "r133" ], "lang": { "en-us": { "role": { "documentation": "Number of warrants or rights outstanding.", "label": "Class of Warrant or Right, Outstanding", "verboseLabel": "Number of shares (in shares)" } } }, "localname": "ClassOfWarrantOrRightOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CollaborativeArrangementDisclosureTextBlock": { "auth_ref": [ "r315", "r316", "r318" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for collaborative arrangements in which the entity is a participant, including a) information about the nature and purpose of such arrangements; b) its rights and obligations thereunder; c) the accounting policy for collaborative arrangements; and d) the income statement classification and amounts attributable to transactions arising from the collaborative arrangement between participants.", "label": "Collaborative Arrangement Disclosure [Text Block]", "terseLabel": "Nexperia Arrangement" } } }, "localname": "CollaborativeArrangementDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/NexperiaArrangement" ], "xbrltype": "textBlockItemType" }, "us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]", "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]" } } }, "localname": "CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r61", "r216", "r421", "r438" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.", "label": "Commitments and Contingencies", "terseLabel": "Commitments and Contingencies" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Commitments and Contingencies Disclosure [Abstract]" } } }, "localname": "CommitmentsAndContingenciesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r215", "r218" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]", "terseLabel": "Commitments and Contingencies" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentsandContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": { "auth_ref": [ "r64" ], "lang": { "en-us": { "role": { "documentation": "Aggregate number of common shares reserved for future issuance.", "label": "Common Stock, Capital Shares Reserved for Future Issuance", "terseLabel": "Common stock reserved for issuance (in shares)" } } }, "localname": "CommonStockCapitalSharesReservedForFutureIssuance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]", "terseLabel": "Common Stock" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r28" ], "lang": { "en-us": { "role": { "documentation": "Face amount or stated value per share of common stock.", "label": "Common Stock, Par or Stated Value Per Share", "terseLabel": "Common stock, par value (in usd per share)" } } }, "localname": "CommonStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r28" ], "lang": { "en-us": { "role": { "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.", "label": "Common Stock, Shares Authorized", "terseLabel": "Common stock, shares authorized (in shares)" } } }, "localname": "CommonStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesIssued": { "auth_ref": [ "r28" ], "lang": { "en-us": { "role": { "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.", "label": "Common Stock, Shares, Issued", "terseLabel": "Common stock, shares issued (in shares)" } } }, "localname": "CommonStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r28", "r228" ], "lang": { "en-us": { "role": { "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.", "label": "Common Stock, Shares, Outstanding", "periodEndLabel": "Ending balance (in shares)", "periodStartLabel": "Beginning balance (in shares)", "terseLabel": "Common stock outstanding (in shares)" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r28" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Common Stock, Value, Issued", "terseLabel": "Common stock" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CompensationAndRetirementDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Retirement Benefits [Abstract]" } } }, "localname": "CompensationAndRetirementDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r78", "r80", "r81" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "Comprehensive loss" } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomePolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for comprehensive income.", "label": "Comprehensive Income, Policy [Policy Text Block]", "terseLabel": "Comprehensive Loss" } } }, "localname": "ComprehensiveIncomePolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ComputerEquipmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Long lived, depreciable assets that are used in the creation, maintenance and utilization of information systems.", "label": "Computer Equipment [Member]", "terseLabel": "Computer Equipment [Member]" } } }, "localname": "ComputerEquipmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConcentrationRiskBenchmarkDomain": { "auth_ref": [ "r153", "r154", "r361", "r362" ], "lang": { "en-us": { "role": { "documentation": "The denominator in a calculation of a disclosed concentration risk percentage.", "label": "Concentration Risk Benchmark [Domain]", "terseLabel": "Concentration Risk Benchmark [Domain]" } } }, "localname": "ConcentrationRiskBenchmarkDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConcentrationRiskByBenchmarkAxis": { "auth_ref": [ "r153", "r154", "r361", "r362", "r447" ], "lang": { "en-us": { "role": { "documentation": "Information by benchmark of concentration risk.", "label": "Concentration Risk Benchmark [Axis]", "terseLabel": "Concentration Risk Benchmark [Axis]" } } }, "localname": "ConcentrationRiskByBenchmarkAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskByTypeAxis": { "auth_ref": [ "r153", "r154", "r361", "r362", "r447" ], "lang": { "en-us": { "role": { "documentation": "Information by type of concentration risk, for example, but not limited to, asset, liability, net assets, geographic, customer, employees, supplier, lender.", "label": "Concentration Risk Type [Axis]", "terseLabel": "Concentration Risk Type [Axis]" } } }, "localname": "ConcentrationRiskByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskCreditRisk": { "auth_ref": [ "r148", "r427" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for credit risk.", "label": "Concentration Risk, Credit Risk, Policy [Policy Text Block]", "terseLabel": "Concentrations of Risk" } } }, "localname": "ConcentrationRiskCreditRisk", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConcentrationRiskDisclosureTextBlock": { "auth_ref": [ "r159" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.", "label": "Concentration Risk Disclosure [Text Block]", "terseLabel": "Concentration of Credit Risk and Significant Customers" } } }, "localname": "ConcentrationRiskDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomers" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConcentrationRiskLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Concentration Risk [Line Items]", "terseLabel": "Concentration Risk [Line Items]" } } }, "localname": "ConcentrationRiskLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskPercentage1": { "auth_ref": [ "r153", "r154", "r361", "r362" ], "lang": { "en-us": { "role": { "documentation": "For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the \"benchmark\" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.", "label": "Concentration Risk, Percentage", "terseLabel": "Percentage of revenue or accounts receivable" } } }, "localname": "ConcentrationRiskPercentage1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ConcentrationRiskTable": { "auth_ref": [ "r151", "r153", "r154", "r155", "r361", "r363" ], "lang": { "en-us": { "role": { "documentation": "Describes the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.", "label": "Concentration Risk [Table]", "terseLabel": "Concentration Risk [Table]" } } }, "localname": "ConcentrationRiskTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskTypeDomain": { "auth_ref": [ "r153", "r154", "r361", "r362" ], "lang": { "en-us": { "role": { "documentation": "For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, identifies the type (for example, asset, liability, net assets, geographic, customer, employees, supplier, lender) of the concentration.", "label": "Concentration Risk Type [Domain]", "terseLabel": "Concentration Risk Type [Domain]" } } }, "localname": "ConcentrationRiskTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]", "terseLabel": "Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]" } } }, "localname": "ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable": { "auth_ref": [ "r328", "r340" ], "lang": { "en-us": { "role": { "documentation": "Summarization of information required and determined to be disclosed concerning the effects of any changes in a parent's ownership interest in a subsidiary on the equity attributable to the parent which may have occurred during the period. The changes represented by this element did not result in the deconsolidation of the subsidiary.", "label": "Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table]", "terseLabel": "Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table]" } } }, "localname": "ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConsolidationPolicyTextBlock": { "auth_ref": [ "r120", "r323", "r341", "r342" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.", "label": "Consolidation, Policy [Policy Text Block]", "terseLabel": "Principles of Consolidation" } } }, "localname": "ConsolidationPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConstructionInProgressMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.", "label": "Construction in Progress [Member]", "terseLabel": "Construction in Progress [Member]" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ContractWithCustomerLiability": { "auth_ref": [ "r239", "r240", "r243" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.", "label": "Contract with Customer, Liability", "terseLabel": "License fee", "verboseLabel": "Deferred revenue" } } }, "localname": "ContractWithCustomerLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityCurrent": { "auth_ref": [ "r239", "r240", "r243" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 7.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.", "label": "Contract with Customer, Liability, Current", "terseLabel": "Deferred revenue" } } }, "localname": "ContractWithCustomerLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityRevenueRecognized": { "auth_ref": [ "r244" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.", "label": "Contract with Customer, Liability, Revenue Recognized", "terseLabel": "Recognition of contractual income" } } }, "localname": "ContractWithCustomerLiabilityRevenueRecognized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConversionOfStockSharesIssued1": { "auth_ref": [ "r116", "r117", "r118" ], "lang": { "en-us": { "role": { "documentation": "The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Conversion of Stock, Shares Issued", "terseLabel": "Conversion of stock (in shares)" } } }, "localname": "ConversionOfStockSharesIssued1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ConvertiblePreferredStockMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Preferred stock that may be exchanged into common shares or other types of securities at the owner's option.", "label": "Convertible Preferred Stock [Member]", "terseLabel": "Convertible Preferred Stock" } } }, "localname": "ConvertiblePreferredStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConvertibleSubordinatedDebt": { "auth_ref": [ "r21", "r415", "r431" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Including the current and noncurrent portions, the carrying value of convertible subordinated debt, as of the balance sheet date, initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. This form of debt can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder, and places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.", "label": "Convertible Subordinated Debt", "terseLabel": "Unsecured subordinated convertible promissory note" } } }, "localname": "ConvertibleSubordinatedDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CorporateJointVentureMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Corporation owned and operated by a small group of ventures to accomplish a mutually beneficial venture or project.", "label": "Corporate Joint Venture [Member]", "terseLabel": "Corporate Joint Venture" } } }, "localname": "CorporateJointVentureMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CostOfRevenue": { "auth_ref": [ "r91" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 3.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate cost of goods produced and sold and services rendered during the reporting period.", "label": "Cost of Revenue", "terseLabel": "Cost of goods sold" } } }, "localname": "CostOfRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_CostOfSalesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing cost of sales.", "label": "Cost of Sales [Member]", "terseLabel": "Cost of revenue" } } }, "localname": "CostOfSalesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CostsAndExpenses": { "auth_ref": [ "r88" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 2.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Total costs of sales and operating expenses for the period.", "label": "Costs and Expenses", "totalLabel": "Total operating expenses" } } }, "localname": "CostsAndExpenses", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_CustomerConcentrationRiskMember": { "auth_ref": [ "r152" ], "lang": { "en-us": { "role": { "documentation": "Reflects the percentage that revenues in the period from one or more significant customers is to net revenues, as defined by the entity, such as total net revenues, product line revenues, segment revenues. The risk is the materially adverse effects of loss of a significant customer.", "label": "Customer Concentration Risk [Member]", "terseLabel": "Customer Concentration Risk" } } }, "localname": "CustomerConcentrationRiskMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Debt Disclosure [Abstract]" } } }, "localname": "DebtDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtDisclosureTextBlock": { "auth_ref": [ "r223" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.", "label": "Debt Disclosure [Text Block]", "terseLabel": "Debts" } } }, "localname": "DebtDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/Debts" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r19", "r20", "r21", "r413", "r415", "r429" ], "lang": { "en-us": { "role": { "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.", "label": "Debt Instrument [Axis]", "terseLabel": "Debt Instrument [Axis]" } } }, "localname": "DebtInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails", "http://transphormusa.com/role/NexperiaArrangementDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentConvertibleConversionPrice1": { "auth_ref": [ "r221" ], "lang": { "en-us": { "role": { "documentation": "The price per share of the conversion feature embedded in the debt instrument.", "label": "Debt Instrument, Convertible, Conversion Price", "terseLabel": "Conversion price per share on convertible note payable (in dollars per share)" } } }, "localname": "DebtInstrumentConvertibleConversionPrice1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_DebtInstrumentConvertibleNumberOfEquityInstruments": { "auth_ref": [ "r59", "r229", "r232", "r234" ], "lang": { "en-us": { "role": { "documentation": "The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.", "label": "Debt Instrument, Convertible, Number of Equity Instruments", "terseLabel": "Maximum number of shares of common stock issuable (in shares)" } } }, "localname": "DebtInstrumentConvertibleNumberOfEquityInstruments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "integerItemType" }, "us-gaap_DebtInstrumentFaceAmount": { "auth_ref": [ "r376", "r378" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Face (par) amount of debt instrument at time of issuance.", "label": "Debt Instrument, Face Amount", "terseLabel": "Long-term loan facility" } } }, "localname": "DebtInstrumentFaceAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/NexperiaArrangementDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentInterestRateStatedPercentage": { "auth_ref": [ "r58" ], "lang": { "en-us": { "role": { "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.", "label": "Debt Instrument, Interest Rate, Stated Percentage", "terseLabel": "Interest rate per annum" } } }, "localname": "DebtInstrumentInterestRateStatedPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r60" ], "lang": { "en-us": { "role": { "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.", "label": "Debt Instrument, Name [Domain]", "terseLabel": "Debt Instrument, Name [Domain]" } } }, "localname": "DebtInstrumentNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails", "http://transphormusa.com/role/NexperiaArrangementDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DeferredIncomeTaxLiabilities": { "auth_ref": [ "r23", "r24", "r300", "r414", "r428" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsLiabilitiesNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences.", "label": "Deferred Tax Liabilities, Gross", "totalLabel": "Total deferred tax liabilities" } } }, "localname": "DeferredIncomeTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredRevenue": { "auth_ref": [ "r37" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.", "label": "Deferred Revenue", "terseLabel": "Deferred revenue" } } }, "localname": "DeferredRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGross": { "auth_ref": [ "r301" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.", "label": "Deferred Tax Assets, Gross", "totalLabel": "Total deferred tax assets" } } }, "localname": "DeferredTaxAssetsGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment": { "auth_ref": [ "r291", "r308", "r309" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from in-process research and development costs expensed in connection with a business combination.", "label": "Deferred Tax Assets, in Process Research and Development", "terseLabel": "California capitalized research and development" } } }, "localname": "DeferredTaxAssetsInProcessResearchAndDevelopment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsLiabilitiesNet": { "auth_ref": [ "r304" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.", "label": "Deferred Tax Assets, Net", "totalLabel": "Net deferred tax assets" } } }, "localname": "DeferredTaxAssetsLiabilitiesNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsNet": { "auth_ref": [ "r302" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsLiabilitiesNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.", "label": "Deferred Tax Assets, Net of Valuation Allowance", "totalLabel": "Deferred tax asset, net of valuation allowance" } } }, "localname": "DeferredTaxAssetsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": { "auth_ref": [ "r290", "r308", "r309" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 3.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.", "label": "Deferred Tax Assets, Operating Loss Carryforwards", "terseLabel": "Net operating loss carryforwards" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOther": { "auth_ref": [ "r291", "r308", "r309" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 5.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.", "label": "Deferred Tax Assets, Other", "terseLabel": "Others, net" } } }, "localname": "DeferredTaxAssetsOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 4.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.", "label": "Deferred Tax Assets, Property, Plant and Equipment", "terseLabel": "Depreciation" } } }, "localname": "DeferredTaxAssetsPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxCreditCarryforwards": { "auth_ref": [ "r306", "r308", "r309" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.", "label": "Deferred Tax Assets, Tax Credit Carryforwards", "terseLabel": "Tax credits" } } }, "localname": "DeferredTaxAssetsTaxCreditCarryforwards", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Deferred Tax Assets, Tax Deferred Expense [Abstract]", "terseLabel": "Deferred Tax Assets, Tax Deferred Expense [Abstract]" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r303" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.", "label": "Deferred Tax Assets, Valuation Allowance", "terseLabel": "Valuation allowance" } } }, "localname": "DeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails", "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesDeferredExpenseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Deferred Tax Liabilities, Deferred Expense [Abstract]", "terseLabel": "Deferred tax liabilities:" } } }, "localname": "DeferredTaxLiabilitiesDeferredExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredTaxLiabilitiesOther": { "auth_ref": [ "r291", "r308", "r309" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences classified as other.", "label": "Deferred Tax Liabilities, Other", "terseLabel": "Others, net" } } }, "localname": "DeferredTaxLiabilitiesOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment": { "auth_ref": [ "r291", "r308", "r309" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.", "label": "Deferred Tax Liabilities, Property, Plant and Equipment", "terseLabel": "Fixed assets" } } }, "localname": "DeferredTaxLiabilitiesPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDeferredTaxAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsLevel3ReconciliationRollForward": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]", "terseLabel": "Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]" } } }, "localname": "DefinedBenefitPlanChangeInFairValueOfPlanAssetsLevel3ReconciliationRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r111", "r163" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.", "label": "Depreciation, Depletion and Amortization", "terseLabel": "Depreciation and amortization" } } }, "localname": "DepreciationDepletionAndAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r288" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]", "terseLabel": "Stock Option Plans" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlans" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Share-based Payment Arrangement [Abstract]" } } }, "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_DomesticCountryMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Designated tax department of the government that is entitled to levy and collect income taxes from the entity in its country of domicile.", "label": "Domestic Tax Authority [Member]", "terseLabel": "Domestic Tax Authority" } } }, "localname": "DomesticCountryMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DueToRelatedPartiesCurrentAndNoncurrent": { "auth_ref": [ "r134", "r384", "r419", "r440" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Carrying amount as of the balance sheet date of obligations due all related parties.", "label": "Due to Related Parties", "terseLabel": "Accounts payable due to related parties" } } }, "localname": "DueToRelatedPartiesCurrentAndNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EarningsPerShareBasicAndDiluted": { "auth_ref": [ "r141" ], "lang": { "en-us": { "role": { "documentation": "The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.", "label": "Earnings Per Share, Basic and Diluted", "terseLabel": "Net loss per share - basic and diluted" } } }, "localname": "EarningsPerShareBasicAndDiluted", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerSharePolicyTextBlock": { "auth_ref": [ "r120", "r142", "r143", "r144" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.", "label": "Earnings Per Share, Policy [Policy Text Block]", "terseLabel": "Loss Per Share" } } }, "localname": "EarningsPerSharePolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r371" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 3.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents", "terseLabel": "Effect of foreign exchange rate changes on cash and cash equivalents" } } }, "localname": "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperations": { "auth_ref": [ "r131", "r295", "r296" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "lang": { "en-us": { "role": { "documentation": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Effective Income Tax Rate Reconciliation, Percent", "totalLabel": "Effective tax rate" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r295", "r296", "r310" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": 1.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Percentage of domestic federal statutory tax rate applicable to pretax income (loss).", "label": "Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent", "terseLabel": "Federal statutory income tax rate" } } }, "localname": "EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r295", "r296", "r310" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": 4.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.", "label": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent", "terseLabel": "Valuation allowance" } } }, "localname": "EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential": { "auth_ref": [ "r295", "r296", "r310" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": 6.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.", "label": "Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent", "terseLabel": "Foreign income tax rate difference" } } }, "localname": "EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense": { "auth_ref": [ "r295", "r296", "r310" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": 3.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": -1.0 } }, "lang": { "en-us": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent", "terseLabel": "Nondeductible expenses" } } }, "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": 2.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.", "label": "Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent", "terseLabel": "Others, net" } } }, "localname": "EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch": { "auth_ref": [ "r295", "r296", "r310" ], "calculation": { "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails": { "order": 5.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": -1.0 } }, "lang": { "en-us": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.", "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent", "terseLabel": "Research and development credit" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxCreditsResearch", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EmployeeRelatedLiabilitiesCurrent": { "auth_ref": [ "r56" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Employee-related Liabilities, Current", "terseLabel": "Accrued payroll and benefits" } } }, "localname": "EmployeeRelatedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]", "terseLabel": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]" } } }, "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized": { "auth_ref": [ "r283" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost not yet recognized for nonvested award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount", "terseLabel": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r283" ], "lang": { "en-us": { "role": { "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition", "terseLabel": "Estimated weighted average amortization period (in years)" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions": { "auth_ref": [ "r283" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount", "terseLabel": "Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions": { "auth_ref": [ "r283" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost to be recognized for option under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount", "terseLabel": "Unrecognized stock-based compensation" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockOptionMember": { "auth_ref": [ "r280" ], "lang": { "en-us": { "role": { "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.", "label": "Share-based Payment Arrangement, Option [Member]", "terseLabel": "Stock options" } } }, "localname": "EmployeeStockOptionMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Equity [Abstract]" } } }, "localname": "EquityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r228" ], "lang": { "en-us": { "role": { "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.", "label": "Equity Component [Domain]", "terseLabel": "Equity Component [Domain]" } } }, "localname": "EquityComponentDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityMethodInvestmentsPolicy": { "auth_ref": [ "r47", "r105", "r120", "r181", "r364" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for equity method of accounting for investments and other interests. Investment includes, but is not limited to, unconsolidated subsidiary, corporate joint venture, noncontrolling interest in real estate venture, limited partnership, and limited liability company. Information includes, but is not limited to, ownership percentage, reason equity method is or is not considered appropriate, and accounting policy election for distribution received.", "label": "Equity Method Investments [Policy Text Block]", "terseLabel": "Equity Method Investments" } } }, "localname": "EquityMethodInvestmentsPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]", "terseLabel": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]" } } }, "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTable": { "auth_ref": [ "r348", "r359", "r360" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table]", "terseLabel": "Fair Value, by Balance Sheet Grouping [Table]" } } }, "localname": "FairValueByBalanceSheetGroupingTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r249", "r250", "r252", "r349", "r394" ], "lang": { "en-us": { "role": { "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.", "label": "Fair Value Hierarchy and NAV [Axis]", "terseLabel": "Fair Value Hierarchy and NAV [Axis]" } } }, "localname": "FairValueByFairValueHierarchyLevelAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails", "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "auth_ref": [ "r348", "r349", "r350", "r351", "r358" ], "lang": { "en-us": { "role": { "documentation": "Information by measurement frequency.", "label": "Measurement Frequency [Axis]", "terseLabel": "Measurement Frequency [Axis]" } } }, "localname": "FairValueByMeasurementFrequencyAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails", "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r356" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.", "label": "Fair Value Disclosures [Text Block]", "terseLabel": "Fair Value Measurements" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurements" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r249", "r250", "r252", "r349", "r395" ], "lang": { "en-us": { "role": { "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.", "label": "Fair Value, Inputs, Level 1 [Member]", "terseLabel": "Level 1" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r249", "r250", "r252", "r349", "r396" ], "lang": { "en-us": { "role": { "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.", "label": "Fair Value, Inputs, Level 2 [Member]", "terseLabel": "Level 2" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r249", "r250", "r252", "r349", "r397" ], "lang": { "en-us": { "role": { "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Inputs, Level 3 [Member]", "terseLabel": "Level 3" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails", "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss": { "auth_ref": [ "r355" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held.", "label": "Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)", "terseLabel": "Increase in fair value" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]", "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable": { "auth_ref": [ "r352", "r357" ], "lang": { "en-us": { "role": { "documentation": "Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of liabilities using significant unobservable inputs (level 3). Separately presenting changes during the period, attributable to: (1) total gains or losses for the period (realized and unrealized) and location reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); (3) transfers in and/or out of Level 3.", "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]", "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock": { "auth_ref": [ "r352", "r357" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.", "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]", "terseLabel": "Changes in fair value of promissory notes" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueMeasurementFrequencyDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Measurement frequency.", "label": "Measurement Frequency [Domain]", "terseLabel": "Measurement Frequency [Domain]" } } }, "localname": "FairValueMeasurementFrequencyDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails", "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.", "label": "Fair Value Measurement, Policy [Policy Text Block]", "terseLabel": "Fair Value Measurement" } } }, "localname": "FairValueMeasurementPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings": { "auth_ref": [ "r353" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings", "negatedTerseLabel": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements": { "auth_ref": [ "r354" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements", "terseLabel": "Principal and interest expense paid" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue": { "auth_ref": [ "r352" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value", "periodEndLabel": "Fair value at December 31,", "periodStartLabel": "Fair value at January 1,", "terseLabel": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.", "label": "Fair Value Hierarchy and NAV [Domain]", "terseLabel": "Fair Value Hierarchy and NAV [Domain]" } } }, "localname": "FairValueMeasurementsFairValueHierarchyDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails", "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsRecurringMember": { "auth_ref": [ "r356", "r358" ], "lang": { "en-us": { "role": { "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.", "label": "Fair Value, Recurring [Member]", "terseLabel": "Fair Value, Recurring" } } }, "localname": "FairValueMeasurementsRecurringMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsChangesinLevel3inputsDetails", "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueOptionChangesInFairValueGainLoss1": { "auth_ref": [ "r366" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 5.0, "parentTag": "us-gaap_IncomeLossAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.", "label": "Fair Value, Option, Changes in Fair Value, Gain (Loss)", "negatedTerseLabel": "Changes in fair value of promissory notes", "terseLabel": "Changes in fair value of promissory note" } } }, "localname": "FairValueOptionChangesInFairValueGainLoss1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement", "http://transphormusa.com/role/ConsolidatedStatementsofOperations", "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueOptionQuantitativeDisclosuresTextBlock": { "auth_ref": [ "r365", "r367", "r368", "r369" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of information about asset and liability measured at fair value under fair value option.", "label": "Fair Value Option, Disclosures [Table Text Block]", "terseLabel": "Schedule of fair value option" } } }, "localname": "FairValueOptionQuantitativeDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FiniteLivedIntangibleAssetUsefulLife": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Finite-Lived Intangible Asset, Useful Life", "terseLabel": "Estimated useful life (in years)" } } }, "localname": "FiniteLivedIntangibleAssetUsefulLife", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": { "auth_ref": [ "r203" ], "calculation": { "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Accumulated Amortization", "negatedLabel": "Accumulated Amortization" } } }, "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": { "auth_ref": [ "r205" ], "calculation": { "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails": { "order": 2.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months", "terseLabel": "2020" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": { "auth_ref": [ "r205" ], "calculation": { "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails": { "order": 5.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Four", "terseLabel": "2023" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": { "auth_ref": [ "r205" ], "calculation": { "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails": { "order": 4.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Three", "terseLabel": "2022" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": { "auth_ref": [ "r205" ], "calculation": { "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails": { "order": 1.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Two", "terseLabel": "2021" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r199", "r200", "r203", "r206", "r399" ], "lang": { "en-us": { "role": { "documentation": "Information by major type or class of finite-lived intangible assets.", "label": "Finite-Lived Intangible Assets by Major Class [Axis]", "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]" } } }, "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsGross": { "auth_ref": [ "r203", "r399" ], "calculation": { "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails": { "order": 1.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Gross", "terseLabel": "Gross" } } }, "localname": "FiniteLivedIntangibleAssetsGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Finite-Lived Intangible Assets [Line Items]", "terseLabel": "Finite-Lived Intangible Assets [Line Items]" } } }, "localname": "FiniteLivedIntangibleAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r199", "r202" ], "lang": { "en-us": { "role": { "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.", "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]", "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetsNet": { "auth_ref": [ "r203" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Net", "terseLabel": "Intangible assets, net", "totalLabel": "Total" } } }, "localname": "FiniteLivedIntangibleAssetsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/IntangibleAssetsEstimatedFutureAmortizationExpensesDetails", "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ForeignCountryMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Designated tax departments of governments entitled to levy and collect income taxes from the entity outside the entity's country of domicile.", "label": "Foreign Tax Authority [Member]", "terseLabel": "Foreign Tax Authority" } } }, "localname": "ForeignCountryMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock": { "auth_ref": [ "r120", "r370", "r372" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy.", "label": "Foreign Currency Transactions and Translations Policy [Policy Text Block]", "terseLabel": "Foreign Currency Risk" } } }, "localname": "ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FurnitureAndFixturesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.", "label": "Furniture and Fixtures [Member]", "terseLabel": "Furniture and Fixtures [Member]" } } }, "localname": "FurnitureAndFixturesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GainLossOnSaleOfPropertyPlantEquipment": { "auth_ref": [ "r111" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 17.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.", "label": "Gain (Loss) on Disposition of Property Plant Equipment", "negatedTerseLabel": "Loss on disposal of property and equipment" } } }, "localname": "GainLossOnSaleOfPropertyPlantEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_GeneralAndAdministrativeExpense": { "auth_ref": [ "r93" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 4.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.", "label": "General and Administrative Expense", "terseLabel": "General and administrative" } } }, "localname": "GeneralAndAdministrativeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_GeneralAndAdministrativeExpenseMember": { "auth_ref": [ "r87" ], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing general and administrative expense.", "label": "General and Administrative Expense [Member]", "terseLabel": "General and administrative" } } }, "localname": "GeneralAndAdministrativeExpenseMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r192", "r194" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill", "terseLabel": "Goodwill" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Goodwill and Intangible Assets Disclosure [Abstract]" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy": { "auth_ref": [ "r120", "r196" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for goodwill. This accounting policy also may address how an entity assesses and measures impairment of goodwill, how reporting units are determined, how goodwill is allocated to such units, and how the fair values of the reporting units are determined.", "label": "Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]", "terseLabel": "Goodwill" } } }, "localname": "GoodwillAndIntangibleAssetsGoodwillPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy": { "auth_ref": [ "r120", "r201" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for intangible assets. This accounting policy may address both intangible assets subject to amortization and those that are not. The following also may be disclosed: (1) a description of intangible assets (2) the estimated useful lives of those assets (3) the amortization method used (4) how the entity assesses and measures impairment of such assets (5) how future cash flows are estimated (6) how the fair values of such asset are determined.", "label": "Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]", "terseLabel": "Intangible Assets" } } }, "localname": "GoodwillAndIntangibleAssetsIntangibleAssetsPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillImpairmentLoss": { "auth_ref": [ "r111", "r193", "r195", "r197" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Impairment Loss", "terseLabel": "Goodwill impairment charges" } } }, "localname": "GoodwillImpairmentLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GrossProfit": { "auth_ref": [ "r90" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.", "label": "Gross Profit", "terseLabel": "Gross loss" } } }, "localname": "GrossProfit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairmentOfIntangibleAssetsFinitelived": { "auth_ref": [ "r111", "r207" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.", "label": "Impairment of Intangible Assets, Finite-lived", "terseLabel": "Impairment of intangible assets" } } }, "localname": "ImpairmentOfIntangibleAssetsFinitelived", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossAttributableToParent": { "auth_ref": [ "r92" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax, of income (loss) attributable to parent. Includes, but is not limited to, income (loss) from continuing operations, discontinued operations and equity method investments.", "label": "Income (Loss) Attributable to Parent, before Tax", "negatedTerseLabel": "Loss before tax expense", "totalLabel": "Loss before tax expense" } } }, "localname": "IncomeLossAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations", "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromEquityMethodInvestments": { "auth_ref": [ "r85", "r111", "r164", "r180", "r423", "r441" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 3.0, "parentTag": "us-gaap_IncomeLossAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (loss) for proportionate share of equity method investee's income (loss).", "label": "Income (Loss) from Equity Method Investments", "negatedTerseLabel": "Loss in joint venture" } } }, "localname": "IncomeLossFromEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement", "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationAxis": { "auth_ref": [ "r213" ], "lang": { "en-us": { "role": { "documentation": "Information by location in the income statement.", "label": "Income Statement Location [Axis]", "terseLabel": "Income Statement Location [Axis]" } } }, "localname": "IncomeStatementLocationAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Location in the income statement.", "label": "Income Statement Location [Domain]", "terseLabel": "Income Statement Location [Domain]" } } }, "localname": "IncomeStatementLocationDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxAuthorityAxis": { "auth_ref": [ "r297" ], "lang": { "en-us": { "role": { "documentation": "Information by tax jurisdiction.", "label": "Income Tax Authority [Axis]", "terseLabel": "Income Tax Authority [Axis]" } } }, "localname": "IncomeTaxAuthorityAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxAuthorityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Agency, division or body classification that levies income taxes, examines tax returns for compliance, or grants exemptions from or makes other decisions pertaining to income taxes.", "label": "Income Tax Authority [Domain]", "terseLabel": "Income Tax Authority [Domain]" } } }, "localname": "IncomeTaxAuthorityDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxAuthorityNameAxis": { "auth_ref": [ "r297" ], "lang": { "en-us": { "role": { "documentation": "Information by name of taxing authority.", "label": "Income Tax Authority, Name [Axis]", "terseLabel": "Income Tax Authority, Name [Axis]" } } }, "localname": "IncomeTaxAuthorityNameAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxAuthorityNameDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Named agency, division or body that levies income taxes, examines tax returns for compliance, or grants exemptions from or makes other decisions pertaining to income taxes.", "label": "Income Tax Authority, Name [Domain]", "terseLabel": "Income Tax Authority, Name [Domain]" } } }, "localname": "IncomeTaxAuthorityNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Abstract]" } } }, "localname": "IncomeTaxDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r313" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.", "label": "Income Tax Disclosure [Text Block]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r123", "r165", "r311" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Income Tax Expense (Benefit)", "terseLabel": "Tax expense" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations", "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxPolicyTextBlock": { "auth_ref": [ "r82", "r120", "r293", "r294", "r298", "r299", "r305", "r312", "r454" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.", "label": "Income Tax, Policy [Policy Text Block]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 15.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.", "label": "Increase (Decrease) in Accounts Payable and Accrued Liabilities", "terseLabel": "Accounts payable and accrued expenses" } } }, "localname": "IncreaseDecreaseInAccountsPayableAndAccruedLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsReceivable": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.", "label": "Increase (Decrease) in Accounts Receivable", "negatedTerseLabel": "Accounts receivable" } } }, "localname": "IncreaseDecreaseInAccountsReceivable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInContractWithCustomerLiability": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.", "label": "Increase (Decrease) in Contract with Customer, Liability", "terseLabel": "Deferred revenue" } } }, "localname": "IncreaseDecreaseInContractWithCustomerLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 13.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in the aggregate amount of obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.", "label": "Increase (Decrease) in Employee Related Liabilities", "terseLabel": "Accrued payroll and benefits" } } }, "localname": "IncreaseDecreaseInEmployeeRelatedLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInInventories": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.", "label": "Increase (Decrease) in Inventories", "negatedTerseLabel": "Inventory" } } }, "localname": "IncreaseDecreaseInInventories", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOtherNoncurrentAssets": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in noncurrent assets classified as other.", "label": "Increase (Decrease) in Other Noncurrent Assets", "negatedTerseLabel": "Other assets" } } }, "localname": "IncreaseDecreaseInOtherNoncurrentAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract]", "terseLabel": "Changes in operating assets and liabilities:" } } }, "localname": "IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.", "label": "Increase (Decrease) in Prepaid Expense and Other Assets", "negatedTerseLabel": "Prepaid expenses and other current assets" } } }, "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_IntangibleAssetsDisclosureTextBlock": { "auth_ref": [ "r208" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for all or part of the information related to intangible assets.", "label": "Intangible Assets Disclosure [Text Block]", "terseLabel": "Intangible Assets" } } }, "localname": "IntangibleAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssets" ], "xbrltype": "textBlockItemType" }, "us-gaap_InterestCostsCapitalized": { "auth_ref": [ "r374" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of interest capitalized during the period.", "label": "Interest Costs Capitalized", "terseLabel": "Capitalized interest cost" } } }, "localname": "InterestCostsCapitalized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpense": { "auth_ref": [ "r83", "r162", "r373", "r377", "r425" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 1.0, "parentTag": "us-gaap_IncomeLossAttributableToParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.", "label": "Interest Expense", "negatedTerseLabel": "Interest expense", "terseLabel": "Interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/ConsolidatedStatementsofOperations", "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseDebt": { "auth_ref": [ "r94", "r222" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of the cost of borrowed funds accounted for as interest expense for debt.", "label": "Interest Expense, Debt", "terseLabel": "Accrued interest on promissory note" } } }, "localname": "InterestExpenseDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseMember": { "auth_ref": [ "r346" ], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing interest expense.", "label": "Interest Expense [Member]", "terseLabel": "Interest Expense" } } }, "localname": "InterestExpenseMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r103", "r108", "r115" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.", "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities", "terseLabel": "Interest expense paid" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement", "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPayableCurrentAndNoncurrent": { "auth_ref": [ "r420", "r439" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of interest payable on debt, including, but not limited to, trade payables.", "label": "Interest Payable", "terseLabel": "Accrued interest on promissory note" } } }, "localname": "InterestPayableCurrentAndNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Inventory Disclosure [Abstract]" } } }, "localname": "InventoryDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_InventoryDisclosureTextBlock": { "auth_ref": [ "r191" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.", "label": "Inventory Disclosure [Text Block]", "terseLabel": "Inventory" } } }, "localname": "InventoryDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/Inventory" ], "xbrltype": "textBlockItemType" }, "us-gaap_InventoryFinishedGoodsNetOfReserves": { "auth_ref": [ "r38", "r190" ], "calculation": { "http://transphormusa.com/role/InventoryDetails": { "order": 3.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.", "label": "Inventory, Finished Goods, Net of Reserves", "terseLabel": "Finished goods" } } }, "localname": "InventoryFinishedGoodsNetOfReserves", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InventoryDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryNet": { "auth_ref": [ "r3", "r67", "r186" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://transphormusa.com/role/InventoryDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.", "label": "Inventory, Net", "terseLabel": "Inventory", "totalLabel": "Total" } } }, "localname": "InventoryNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/InventoryDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryPolicyTextBlock": { "auth_ref": [ "r8", "r68", "r120", "r145", "r187", "r189" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.", "label": "Inventory, Policy [Policy Text Block]", "terseLabel": "Inventory" } } }, "localname": "InventoryPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_InventoryRawMaterialsNetOfReserves": { "auth_ref": [ "r40", "r190" ], "calculation": { "http://transphormusa.com/role/InventoryDetails": { "order": 2.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.", "label": "Inventory, Raw Materials, Net of Reserves", "terseLabel": "Raw materials" } } }, "localname": "InventoryRawMaterialsNetOfReserves", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InventoryDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryWorkInProcessNetOfReserves": { "auth_ref": [ "r39", "r190" ], "calculation": { "http://transphormusa.com/role/InventoryDetails": { "order": 1.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.", "label": "Inventory, Work in Process, Net of Reserves", "terseLabel": "Work in process" } } }, "localname": "InventoryWorkInProcessNetOfReserves", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InventoryDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryWriteDown": { "auth_ref": [ "r188" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 16.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.", "label": "Inventory Write-down", "terseLabel": "Inventory write-off" } } }, "localname": "InventoryWriteDown", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement", "http://transphormusa.com/role/InventoryDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseAndRentalExpense": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.", "label": "Operating Leases, Rent Expense", "terseLabel": "Rent expense" } } }, "localname": "LeaseAndRentalExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseholdImprovementsMember": { "auth_ref": [ "r209" ], "lang": { "en-us": { "role": { "documentation": "Additions or improvements to assets held under a lease arrangement.", "label": "Leasehold Improvements [Member]", "terseLabel": "Leasehold improvements" } } }, "localname": "LeaseholdImprovementsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LeasesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Leases [Abstract]" } } }, "localname": "LeasesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r55" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.", "label": "Liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities [Abstract]", "terseLabel": "Liabilities, convertible preferred stock and stockholders\u2019 deficit" } } }, "localname": "LiabilitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r35", "r417", "r434" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.", "label": "Liabilities and Equity", "totalLabel": "Total liabilities, convertible preferred stock and stockholders\u2019 deficit" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesCurrent": { "auth_ref": [ "r57" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.", "label": "Liabilities, Current", "totalLabel": "Total current liabilities" } } }, "localname": "LiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesCurrentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities, Current [Abstract]", "terseLabel": "Current liabilities:" } } }, "localname": "LiabilitiesCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LicenseAndServiceMember": { "auth_ref": [ "r245" ], "lang": { "en-us": { "role": { "documentation": "Right to use intangible asset and performance of related service. Intangible asset includes, but is not limited to, patent, copyright, technology, manufacturing process, software or trademark.", "label": "License and Service [Member]", "terseLabel": "License and Service [Member]" } } }, "localname": "LicenseAndServiceMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LineOfCredit": { "auth_ref": [ "r21", "r415", "r429" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.", "label": "Long-term Line of Credit", "terseLabel": "Outstanding balance on line of credit facility" } } }, "localname": "LineOfCredit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Line of Credit Facility [Line Items]", "terseLabel": "Line of Credit Facility [Line Items]" } } }, "localname": "LineOfCreditFacilityLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r52" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.", "label": "Line of Credit Facility, Maximum Borrowing Capacity", "terseLabel": "Revolving loan" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityTable": { "auth_ref": [ "r52", "r129" ], "lang": { "en-us": { "role": { "documentation": "A table or schedule providing information pertaining to short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.", "label": "Line of Credit Facility [Table]", "terseLabel": "Line of Credit Facility [Table]" } } }, "localname": "LineOfCreditFacilityTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsNotesPayableDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LinesOfCreditCurrent": { "auth_ref": [ "r19", "r413" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.", "label": "Line of Credit, Current", "terseLabel": "Revolving credit facility, including accrued interest" } } }, "localname": "LinesOfCreditCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebt": { "auth_ref": [ "r21", "r220", "r415", "r431" ], "calculation": { "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt", "totalLabel": "Total", "verboseLabel": "Aggregate principal amount of loans outstanding" } } }, "localname": "LongTermDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails", "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths": { "auth_ref": [ "r135", "r219" ], "calculation": { "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails": { "order": 2.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months", "terseLabel": "2020" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree": { "auth_ref": [ "r135", "r219" ], "calculation": { "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails": { "order": 1.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Year Three", "terseLabel": "2022" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo": { "auth_ref": [ "r135", "r219" ], "calculation": { "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails": { "order": 3.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Year Two", "terseLabel": "2021" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear": { "auth_ref": [ "r135" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year", "terseLabel": "Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsMaturitiesScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtNoncurrent": { "auth_ref": [ "r60" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt, Excluding Current Maturities", "terseLabel": "Long-term Debt, Excluding Current Maturities" } } }, "localname": "LongTermDebtNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermLoansPayable": { "auth_ref": [ "r60" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.", "label": "Loans Payable, Noncurrent", "terseLabel": "Development loans, net of current portion" } } }, "localname": "LongTermLoansPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_MachineryAndEquipmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.", "label": "Machinery and Equipment [Member]", "terseLabel": "Machinery and Equipment [Member]" } } }, "localname": "MachineryAndEquipmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.", "label": "Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners", "terseLabel": "Other investors with a small percentage" } } }, "localname": "MinorityInterestOwnershipPercentageByNoncontrollingOwners", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "percentItemType" }, "us-gaap_NationalTaxAgencyJapanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Designated tax department of the government of Japan.", "label": "National Tax Agency, Japan [Member]", "terseLabel": "National Tax Agency, Japan" } } }, "localname": "NationalTaxAgencyJapanMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r106" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.", "label": "Net Cash Provided by (Used in) Financing Activities", "totalLabel": "Net cash provided by financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]", "terseLabel": "Cash flows from financing activities:" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r106" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 4.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.", "label": "Net Cash Provided by (Used in) Investing Activities", "totalLabel": "Net cash used in investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]", "terseLabel": "Cash flows from investing activities:" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r106", "r109", "r112" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.", "label": "Net Cash Provided by (Used in) Operating Activities", "totalLabel": "Net cash used in operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Net Cash Provided by (Used in) Operating Activities [Abstract]" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r76", "r79", "r86", "r112", "r143", "r424", "r442" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 14.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss": { "order": 2.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 }, "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.", "label": "Net Income (Loss) Attributable to Parent", "terseLabel": "Net loss", "totalLabel": "Net loss" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss", "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.", "label": "New Accounting Pronouncements, Policy [Policy Text Block]", "terseLabel": "Recently Issued Accounting Standards Adopted and under Evaluation" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NoncontrollingInterestInVariableInterestEntity": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).", "label": "Noncontrolling Interest in Variable Interest Entity", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance" } } }, "localname": "NoncontrollingInterestInVariableInterestEntity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NotesPayable": { "auth_ref": [ "r21", "r415", "r431" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.", "label": "Notes Payable", "terseLabel": "Notes payable" } } }, "localname": "NotesPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NotesPayableCurrent": { "auth_ref": [ "r53" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.", "label": "Notes Payable, Current", "terseLabel": "Development loan" } } }, "localname": "NotesPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_NotesPayableFairValueDisclosure": { "auth_ref": [ "r54" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of notes payable.", "label": "Notes Payable, Fair Value Disclosure", "terseLabel": "Promissory note" } } }, "localname": "NotesPayableFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsNotesPayableDetails", "http://transphormusa.com/role/FairValueMeasurementsFairValueHierarchyDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NotesReduction": { "auth_ref": [ "r116", "r117", "r118" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The value of notes retired (or transferred to another entity) in noncash investing or financing transactions.", "label": "Notes Reduction", "terseLabel": "Notes Reduction" } } }, "localname": "NotesReduction", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_NumberOfReportableSegments": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.", "label": "Number of Reportable Segments", "terseLabel": "Number of reportable segments" } } }, "localname": "NumberOfReportableSegments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails" ], "xbrltype": "integerItemType" }, "us-gaap_OperatingExpensesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Operating Expenses [Abstract]", "terseLabel": "Operating expenses:" } } }, "localname": "OperatingExpensesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingIncomeLoss": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 4.0, "parentTag": "us-gaap_IncomeLossAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net result for the period of deducting operating expenses from operating revenues.", "label": "Operating Income (Loss)", "totalLabel": "Loss from operations" } } }, "localname": "OperatingIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDue": { "auth_ref": [ "r379", "r380" ], "calculation": { "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.", "label": "Operating Leases, Future Minimum Payments Due", "totalLabel": "Total" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals": { "auth_ref": [ "r381" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Contractually required future rental payments receivable on noncancelable subleasing arrangements.", "label": "Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals", "terseLabel": "Future minimum rental payments to be received under sublease" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears": { "auth_ref": [ "r379", "r380" ], "calculation": { "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails": { "order": 1.0, "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Due in Three Years", "terseLabel": "2022" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueInThreeYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears": { "auth_ref": [ "r379", "r380" ], "calculation": { "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails": { "order": 2.0, "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Due in Two Years", "terseLabel": "2021" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueInTwoYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails": { "order": 3.0, "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Remainder of Fiscal Year", "terseLabel": "2020" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesOperatingLeaseMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesRentExpenseSubleaseRentals1": { "auth_ref": [ "r379" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases.", "label": "Operating Leases, Rent Expense, Sublease Rentals", "terseLabel": "Rental income from noncancelable sublease" } } }, "localname": "OperatingLeasesRentExpenseSubleaseRentals1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLossCarryforwards": { "auth_ref": [ "r306" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.", "label": "Operating Loss Carryforwards", "terseLabel": "Operating loss carryforwards" } } }, "localname": "OperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLossCarryforwardsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Operating Loss Carryforwards [Line Items]", "terseLabel": "Operating Loss Carryforwards [Line Items]" } } }, "localname": "OperatingLossCarryforwardsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLossCarryforwardsTable": { "auth_ref": [ "r307" ], "lang": { "en-us": { "role": { "documentation": "Schedule reflecting pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.", "label": "Operating Loss Carryforwards [Table]", "terseLabel": "Operating Loss Carryforwards [Table]" } } }, "localname": "OperatingLossCarryforwardsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock": { "auth_ref": [ "r1", "r343" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.", "label": "Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]", "terseLabel": "Business and Basis of Presentation" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentation" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherAssetsMember": { "auth_ref": [ "r344", "r347" ], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing other assets.", "label": "Other Assets [Member]", "terseLabel": "Other Assets" } } }, "localname": "OtherAssetsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherAssetsNoncurrent": { "auth_ref": [ "r51" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncurrent assets classified as other.", "label": "Other Assets, Noncurrent", "terseLabel": "Other assets" } } }, "localname": "OtherAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r321", "r322", "r326" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.", "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent", "terseLabel": "Foreign currency translation adjustments" } } }, "localname": "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Other Comprehensive Income (Loss), Net of Tax [Abstract]", "terseLabel": "Other Comprehensive Income (Loss), Net of Tax [Abstract]" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r77", "r80", "r321", "r322", "r326" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.", "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent", "terseLabel": "Other comprehensive income", "totalLabel": "Other comprehensive (loss) income, net of tax" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/ConsolidatedStatementsofComprehensiveLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilitiesCurrent": { "auth_ref": [ "r6", "r7", "r56" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.", "label": "Other Liabilities, Current", "terseLabel": "Unfunded commitment to joint venture" } } }, "localname": "OtherLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLongTermNotesPayable": { "auth_ref": [ "r60" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of long-term notes classified as other, payable after one year or the normal operating cycle, if longer.", "label": "Other Notes Payable, Noncurrent", "terseLabel": "Promissory note" } } }, "localname": "OtherLongTermNotesPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNonoperatingIncomeExpense": { "auth_ref": [ "r95" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 2.0, "parentTag": "us-gaap_IncomeLossAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.", "label": "Other Nonoperating Income (Expense)", "negatedTerseLabel": "Other income, net" } } }, "localname": "OtherNonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_PatentsMember": { "auth_ref": [ "r314" ], "lang": { "en-us": { "role": { "documentation": "Exclusive legal right granted by the government to the owner of the patent to exploit an invention or a process for a period of time specified by law.", "label": "Patents [Member]", "terseLabel": "Patents" } } }, "localname": "PatentsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PaymentsForRepurchaseOfCommonStock": { "auth_ref": [ "r100" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow to reacquire common stock during the period.", "label": "Payments for Repurchase of Common Stock", "negatedTerseLabel": "Payments for Repurchase of Common Stock" } } }, "localname": "PaymentsForRepurchaseOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfStockIssuanceCosts": { "auth_ref": [ "r102" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for cost incurred directly with the issuance of an equity security.", "label": "Payments of Stock Issuance Costs", "terseLabel": "Placement agent fees and closing expenses" } } }, "localname": "PaymentsOfStockIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireEquityMethodInvestments": { "auth_ref": [ "r96" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.", "label": "Payments to Acquire Equity Method Investments", "negatedTerseLabel": "Investment in joint venture", "terseLabel": "Investment in joint venture" } } }, "localname": "PaymentsToAcquireEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r97" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.", "label": "Payments to Acquire Property, Plant, and Equipment", "negatedTerseLabel": "Purchases of property and equipment" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": { "auth_ref": [ "r253" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for pension and other postretirement benefits.", "label": "Pension and Other Postretirement Benefits Disclosure [Text Block]", "terseLabel": "401(k) Savings Plan" } } }, "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/A401kSavingsPlan" ], "xbrltype": "textBlockItemType" }, "us-gaap_PlanNameAxis": { "auth_ref": [ "r256", "r284" ], "lang": { "en-us": { "role": { "documentation": "Information by plan name for share-based payment arrangement.", "label": "Plan Name [Axis]", "terseLabel": "Plan Name [Axis]" } } }, "localname": "PlanNameAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PlanNameDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Plan name for share-based payment arrangement.", "label": "Plan Name [Domain]", "terseLabel": "Plan Name [Domain]" } } }, "localname": "PlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockLiquidationPreferenceValue": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of the difference between preference in liquidation and the par or stated values of the preferred shares.", "label": "Preferred Stock, Liquidation Preference, Value", "terseLabel": "Preferred stock liquidation value" } } }, "localname": "PreferredStockLiquidationPreferenceValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PreferredStockMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Preferred shares may provide a preferential dividend to the dividend on common stock and may take precedence over common stock in the event of a liquidation. Preferred shares typically represent an ownership interest in the company.", "label": "Preferred Stock [Member]", "terseLabel": "Preferred Stock [Member]" } } }, "localname": "PreferredStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockParOrStatedValuePerShare": { "auth_ref": [ "r27" ], "lang": { "en-us": { "role": { "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.", "label": "Preferred Stock, Par or Stated Value Per Share", "terseLabel": "Par value of preferred stock (in usd per share)" } } }, "localname": "PreferredStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_PreferredStockSharesAuthorized": { "auth_ref": [ "r27" ], "lang": { "en-us": { "role": { "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.", "label": "Preferred Stock, Shares Authorized", "terseLabel": "Preferred stock, shares authorized (in shares)" } } }, "localname": "PreferredStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesIssued": { "auth_ref": [ "r27" ], "lang": { "en-us": { "role": { "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.", "label": "Preferred Stock, Shares Issued", "terseLabel": "Preferred stock, shares issued (in shares)" } } }, "localname": "PreferredStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesOutstanding": { "auth_ref": [ "r27" ], "lang": { "en-us": { "role": { "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.", "label": "Preferred Stock, Shares Outstanding", "terseLabel": "Preferred stock, shares outstanding (in shares)" } } }, "localname": "PreferredStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockValueOutstanding": { "auth_ref": [ "r27" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by shareholders, which is net of related treasury stock. May be all or a portion of the number of preferred shares authorized. These shares represent the ownership interest of the preferred shareholders.", "label": "Preferred Stock, Value, Outstanding", "terseLabel": "Preferred stock outstanding" } } }, "localname": "PreferredStockValueOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrepaidExpenseAndOtherAssetsCurrent": { "auth_ref": [ "r4", "r44", "r45" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.", "label": "Prepaid Expense and Other Assets, Current", "terseLabel": "Prepaid expenses and other current assets" } } }, "localname": "PrepaidExpenseAndOtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_PriorPeriodReclassificationAdjustmentDescription": { "auth_ref": [ "r0" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements.", "label": "Reclassification, Policy [Policy Text Block]", "terseLabel": "Reclassification of Prior Year Presentation" } } }, "localname": "PriorPeriodReclassificationAdjustmentDescription", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PrivatePlacementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A private placement is a direct offering of securities to a limited number of sophisticated investors such as insurance companies, pension funds, mezzanine funds, stock funds and trusts.", "label": "Private Placement [Member]", "terseLabel": "Private Placement" } } }, "localname": "PrivatePlacementMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ProceedsFromCollaborators": { "auth_ref": [ "r107" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Cash received from collaborators during the current period.", "label": "Proceeds from Collaborators", "terseLabel": "Proceeds from Collaborators" } } }, "localname": "ProceedsFromCollaborators", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfCommonStock": { "auth_ref": [ "r98" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from the additional capital contribution to the entity.", "label": "Proceeds from Issuance of Common Stock", "terseLabel": "Proceeds from Issuance of Common Stock" } } }, "localname": "ProceedsFromIssuanceOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock": { "auth_ref": [ "r98" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from issuance of preferred stocks identified as being convertible into another form of financial instrument, typically the entity's common stock.", "label": "Proceeds from Issuance of Convertible Preferred Stock", "terseLabel": "Proceeds from issuance of Series 3 convertible preferred stock" } } }, "localname": "ProceedsFromIssuanceOfConvertiblePreferredStock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfLongTermDebt": { "auth_ref": [ "r99" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.", "label": "Proceeds from Issuance of Long-term Debt", "terseLabel": "Proceeds from Issuance of debt" } } }, "localname": "ProceedsFromIssuanceOfLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromLicenseFeesReceived": { "auth_ref": [ "r107" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Cash received from licensees for license fees during the current period.", "label": "Proceeds from License Fees Received", "terseLabel": "License fees" } } }, "localname": "ProceedsFromLicenseFeesReceived", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromLinesOfCredit": { "auth_ref": [ "r99", "r130" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.", "label": "Proceeds from Lines of Credit", "terseLabel": "Proceeds from issuance of revolving credit facility" } } }, "localname": "ProceedsFromLinesOfCredit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromNotesPayable": { "auth_ref": [ "r99" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from a borrowing supported by a written promise to pay an obligation.", "label": "Proceeds from Notes Payable", "terseLabel": "Proceeds from issuance of development loans" } } }, "localname": "ProceedsFromNotesPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromStockOptionsExercised": { "auth_ref": [ "r98", "r285" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement.", "label": "Proceeds from Stock Options Exercised", "terseLabel": "Proceeds from Stock Options Exercised" } } }, "localname": "ProceedsFromStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfitLoss": { "auth_ref": [ "r76", "r79", "r104", "r166", "r168", "r321", "r324", "r325", "r338", "r339" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.", "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest", "verboseLabel": "Net loss" } } }, "localname": "ProfitLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment [Abstract]" } } }, "localname": "PropertyPlantAndEquipmentAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r50", "r211" ], "lang": { "en-us": { "role": { "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.", "label": "Property, Plant and Equipment, Type [Axis]", "terseLabel": "Property, Plant and Equipment, Type [Axis]" } } }, "localname": "PropertyPlantAndEquipmentByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": { "auth_ref": [ "r214" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.", "label": "Property, Plant and Equipment Disclosure [Text Block]", "terseLabel": "Property and Equipment" } } }, "localname": "PropertyPlantAndEquipmentDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipment" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r49", "r209" ], "calculation": { "http://transphormusa.com/role/PropertyandEquipmentDetails": { "order": 2.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property, Plant and Equipment, Gross", "terseLabel": "Property, Plant and Equipment, Gross" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentImpairment": { "auth_ref": [ "r120", "r212" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for assessing and recognizing impairments of its property, plant and equipment.", "label": "Property, Plant and Equipment, Impairment [Policy Text Block]", "terseLabel": "Property and Equipment, Impairment" } } }, "localname": "PropertyPlantAndEquipmentImpairment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Property, Plant and Equipment [Line Items]", "terseLabel": "Property, Plant and Equipment [Line Items]" } } }, "localname": "PropertyPlantAndEquipmentLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r14", "r15", "r211", "r437" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://transphormusa.com/role/PropertyandEquipmentDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property, Plant and Equipment, Net", "terseLabel": "Property and equipment, net", "totalLabel": "Property, Plant and Equipment, Net, Total" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": { "auth_ref": [ "r48", "r120", "r211" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments.", "label": "Property, Plant and Equipment, Policy [Policy Text Block]", "terseLabel": "Property and Equipment" } } }, "localname": "PropertyPlantAndEquipmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r14", "r211" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Property, Plant and Equipment [Table Text Block]", "terseLabel": "Property, Plant and Equipment" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r14", "r209" ], "lang": { "en-us": { "role": { "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.", "label": "Property, Plant and Equipment, Type [Domain]", "terseLabel": "Property, Plant and Equipment, Type [Domain]" } } }, "localname": "PropertyPlantAndEquipmentTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PropertyPlantAndEquipmentUsefulLife": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.", "label": "Property, Plant and Equipment, Useful Life", "terseLabel": "Estimated Useful Life (in years)", "verboseLabel": "Property and equipment, estimated useful life" } } }, "localname": "PropertyPlantAndEquipmentUsefulLife", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ProvisionForLoanLossesExpensed": { "auth_ref": [ "r184", "r418", "r422" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of credit loss expense (reversal of expense) for financing receivable.", "label": "Financing Receivable, Credit Loss, Expense (Reversal)", "terseLabel": "Financing Receivable, Credit Loss, Expense (Reversal)" } } }, "localname": "ProvisionForLoanLossesExpensed", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted": { "auth_ref": [ "r22", "r416", "r432" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.", "label": "Purchase Commitment, Remaining Minimum Amount Committed", "terseLabel": "Unfunded commitment" } } }, "localname": "PurchaseCommitmentRemainingMinimumAmountCommitted", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesNarrativeDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReceivablesNetCurrent": { "auth_ref": [ "r30", "r36", "r436", "r451" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.", "label": "Receivables, Net, Current", "terseLabel": "Accounts receivable, net, including related parties" } } }, "localname": "ReceivablesNetCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_RelatedPartyDomain": { "auth_ref": [ "r390" ], "lang": { "en-us": { "role": { "documentation": "Related parties include affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.", "label": "Related Party [Domain]", "terseLabel": "Related Party [Domain]" } } }, "localname": "RelatedPartyDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails", "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RelatedPartyTransactionAxis": { "auth_ref": [ "r251", "r385", "r386" ], "lang": { "en-us": { "role": { "documentation": "Information by type of related party transaction.", "label": "Related Party Transaction [Axis]", "terseLabel": "Related Party Transaction [Axis]" } } }, "localname": "RelatedPartyTransactionAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RelatedPartyTransactionDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transaction between related party.", "label": "Related Party Transaction [Domain]", "terseLabel": "Related Party Transaction [Domain]" } } }, "localname": "RelatedPartyTransactionDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty": { "auth_ref": [ "r383" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.", "label": "Related Party Transaction, Expenses from Transactions with Related Party", "terseLabel": "Related party transaction expenses" } } }, "localname": "RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RelatedPartyTransactionLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Related Party Transaction [Line Items]", "terseLabel": "Related Party Transaction" } } }, "localname": "RelatedPartyTransactionLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RelatedPartyTransactionsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Related Party Transactions [Abstract]" } } }, "localname": "RelatedPartyTransactionsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": { "auth_ref": [ "r251", "r385", "r386", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r409", "r410", "r411" ], "lang": { "en-us": { "role": { "documentation": "Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.", "label": "Related Party [Axis]", "terseLabel": "Related Party [Axis]" } } }, "localname": "RelatedPartyTransactionsByRelatedPartyAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails", "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RelatedPartyTransactionsDisclosureTextBlock": { "auth_ref": [ "r390" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.", "label": "Related Party Transactions Disclosure [Text Block]", "terseLabel": "Related Party Transactions" } } }, "localname": "RelatedPartyTransactionsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactions" ], "xbrltype": "textBlockItemType" }, "us-gaap_RepaymentsOfDebt": { "auth_ref": [ "r101" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.", "label": "Repayments of Debt", "terseLabel": "Repayments of Debt" } } }, "localname": "RepaymentsOfDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfNotesPayable": { "auth_ref": [ "r101" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for a borrowing supported by a written promise to pay an obligation.", "label": "Repayments of Notes Payable", "negatedTerseLabel": "Principal payments on promissory notes" } } }, "localname": "RepaymentsOfNotesPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfOtherDebt": { "auth_ref": [ "r101" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow for the payment of debt classified as other.", "label": "Repayments of Other Debt", "negatedTerseLabel": "Repayments of Other Debt" } } }, "localname": "RepaymentsOfOtherDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ResearchAndDevelopmentArrangementWithFederalGovernmentCustomerFundingToOffsetCostsIncurred": { "auth_ref": [ "r398" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of customer funding recorded as an offset to costs incurred for a fixed-price, best-efforts research and development cost-sharing arrangement with the Federal Government.", "label": "Research and Development Arrangement with Federal Government, Customer Funding to Offset Costs Incurred", "terseLabel": "Cost reimbursable sub award" } } }, "localname": "ResearchAndDevelopmentArrangementWithFederalGovernmentCustomerFundingToOffsetCostsIncurred", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ResearchAndDevelopmentExpense": { "auth_ref": [ "r289", "r457" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 2.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.", "label": "Research and Development Expense", "terseLabel": "Research and development" } } }, "localname": "ResearchAndDevelopmentExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_ResearchAndDevelopmentExpenseMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption in which the reported facts about research and development expense have been included.", "label": "Research and Development Expense [Member]", "terseLabel": "Research and development" } } }, "localname": "ResearchAndDevelopmentExpenseMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ResearchAndDevelopmentExpensePolicy": { "auth_ref": [ "r120", "r289" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for costs it has incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process.", "label": "Research and Development Expense, Policy [Policy Text Block]", "terseLabel": "Research and Development" } } }, "localname": "ResearchAndDevelopmentExpensePolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ResearchMember": { "auth_ref": [ "r307" ], "lang": { "en-us": { "role": { "documentation": "Research tax credit carryforwards arising from certain qualifying expenditures incurred to develop new products and processes.", "label": "Research Tax Credit Carryforward [Member]", "terseLabel": "Research Tax Credit Carryforward" } } }, "localname": "ResearchMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r142" ], "lang": { "en-us": { "role": { "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.", "label": "Restricted Stock [Member]", "terseLabel": "Restricted Stock [Member]" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedStockUnitsRSUMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.", "label": "Restricted Stock Units (RSUs) [Member]", "terseLabel": "Restricted Stock Units (RSUs) [Member]" } } }, "localname": "RestrictedStockUnitsRSUMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r32", "r236", "r433" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings (Accumulated Deficit)", "terseLabel": "Accumulated deficit" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]", "terseLabel": "Accumulated Deficit" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "domainItemType" }, "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": { "auth_ref": [ "r241", "r242" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 1.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.", "label": "Revenue from Contract with Customer, Excluding Assessed Tax", "terseLabel": "Revenue, net" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerMember": { "auth_ref": [ "r153" ], "lang": { "en-us": { "role": { "documentation": "Revenue from satisfaction of performance obligation by transferring promised product and service to customer, when it serves as benchmark in concentration of risk calculation.", "label": "Revenue from Contract with Customer Benchmark [Member]", "terseLabel": "Revenue" } } }, "localname": "RevenueFromContractWithCustomerMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RevenueFromContractWithCustomerPolicyTextBlock": { "auth_ref": [ "r121", "r248" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for revenue from contract with customer.", "label": "Revenue from Contract with Customer [Policy Text Block]", "terseLabel": "Revenue Recognition" } } }, "localname": "RevenueFromContractWithCustomerPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenueFromRelatedParties": { "auth_ref": [ "r89", "r452" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.", "label": "Revenue from Related Parties", "terseLabel": "Products sold to related party" } } }, "localname": "RevenueFromRelatedParties", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_Revenues": { "auth_ref": [ "r84", "r160", "r161", "r167" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).", "label": "Revenues", "terseLabel": "Sales" } } }, "localname": "Revenues", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RisksAndUncertaintiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Risks and Uncertainties [Abstract]" } } }, "localname": "RisksAndUncertaintiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_SaleOfStockConsiderationReceivedOnTransaction": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Cash received on stock transaction after deduction of issuance costs.", "label": "Sale of Stock, Consideration Received on Transaction", "terseLabel": "Aggregate gross proceeds from closing of offering" } } }, "localname": "SaleOfStockConsiderationReceivedOnTransaction", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SaleOfStockNameOfTransactionDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement.", "label": "Sale of Stock [Domain]", "terseLabel": "Sale of Stock [Domain]" } } }, "localname": "SaleOfStockNameOfTransactionDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.", "label": "Sale of Stock, Number of Shares Issued in Transaction", "terseLabel": "Number of shares sold in private placement offering (in shares)" } } }, "localname": "SaleOfStockNumberOfSharesIssuedInTransaction", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_SaleOfStockPricePerShare": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.", "label": "Sale of Stock, Price Per Share", "terseLabel": "Price per share (in dollars per share)" } } }, "localname": "SaleOfStockPricePerShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable": { "auth_ref": [ "r317" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.", "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Table]", "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative [Table]" } } }, "localname": "ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfDebtInstrumentsTextBlock": { "auth_ref": [ "r60", "r129", "r229", "r233", "r234", "r235", "r375", "r376", "r378", "r426" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.", "label": "Schedule of Long-term Debt Instruments [Table Text Block]", "terseLabel": "Schedule of promissory note obligation" } } }, "localname": "ScheduleOfDebtInstrumentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [ "r304" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.", "label": "Schedule of Deferred Tax Assets and Liabilities [Table Text Block]", "terseLabel": "Schedule of Deferred Tax Assets and Liabilities" } } }, "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r295" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.", "label": "Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]", "terseLabel": "Schedule of Effective Income Tax Rate Reconciliation" } } }, "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable": { "auth_ref": [ "r255", "r281", "r287" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about amount recognized for award under share-based payment arrangement. Includes, but is not limited to, amount expensed in statement of income or comprehensive income, amount capitalized in statement of financial position, and corresponding reporting line item in financial statements.", "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]", "terseLabel": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]" } } }, "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock": { "auth_ref": [ "r255", "r281", "r287" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.", "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]", "terseLabel": "Stock-based compensation expense" } } }, "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": { "auth_ref": [ "r348", "r349" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).", "label": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]", "terseLabel": "Liabilities measured at fair value by level" } } }, "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r199", "r202" ], "lang": { "en-us": { "role": { "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Schedule of Finite-Lived Intangible Assets [Table]", "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsFiniteLivedIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r199", "r202" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.", "label": "Schedule of Finite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Schedule of Finite-Lived Intangible Assets" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock": { "auth_ref": [ "r382" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.", "label": "Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]", "terseLabel": "Schedule of future minimum operating lease commitments" } } }, "localname": "ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/CommitmentandContingenciesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfInventoryCurrentTableTextBlock": { "auth_ref": [ "r8", "r41", "r42", "r43" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.", "label": "Schedule of Inventory, Current [Table Text Block]", "terseLabel": "Schedule of inventory" } } }, "localname": "ScheduleOfInventoryCurrentTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InventoryTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock": { "auth_ref": [ "r219" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.", "label": "Schedule of Maturities of Long-term Debt [Table Text Block]", "terseLabel": "Schedule of maturities of long-term debt" } } }, "localname": "ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/DebtsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r50", "r211" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Property, Plant and Equipment [Table]", "terseLabel": "Property, Plant and Equipment [Table]" } } }, "localname": "ScheduleOfPropertyPlantAndEquipmentTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/PropertyandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable": { "auth_ref": [ "r126", "r385", "r386", "r387", "r388", "r389" ], "lang": { "en-us": { "role": { "documentation": "Schedule of quantitative and qualitative information pertaining to related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.", "label": "Schedule of Related Party Transactions, by Related Party [Table]", "terseLabel": "Schedule of Related Party Transactions, by Related Party [Table]" } } }, "localname": "ScheduleOfRelatedPartyTransactionsByRelatedPartyTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/RelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r256", "r284" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about share-based payment arrangement.", "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]", "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]" } } }, "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": { "auth_ref": [ "r262", "r273", "r274" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.", "label": "Share-based Payment Arrangement, Option, Activity [Table Text Block]", "terseLabel": "Schedule of stock option activity" } } }, "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock": { "auth_ref": [ "r276" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.", "label": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]", "terseLabel": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions" } } }, "localname": "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfStockByClassTable": { "auth_ref": [ "r63", "r128", "r224", "r226", "r227", "r229", "r230", "r231", "r233", "r234", "r235", "r236" ], "lang": { "en-us": { "role": { "documentation": "Schedule detailing information related to equity by class of stock. Class of stock includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. It also includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity.", "label": "Schedule of Stock by Class [Table]", "terseLabel": "Schedule of Stock by Class [Table]" } } }, "localname": "ScheduleOfStockByClassTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails", "http://transphormusa.com/role/StockholdersEquityWarrantsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfStockByClassTextBlock": { "auth_ref": [ "r26", "r27", "r28", "r122", "r225", "r226", "r227", "r229", "r230", "r231", "r233", "r234", "r235", "r236" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding.", "label": "Schedule of Stock by Class [Table Text Block]", "terseLabel": "Schedule of convertible preferred stock by class" } } }, "localname": "ScheduleOfStockByClassTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockTables", "http://transphormusa.com/role/StockholdersEquityTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock": { "auth_ref": [ "r124", "r237", "r254" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.", "label": "Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]", "terseLabel": "Schedule of stockholders' equity note, warrants or rights" } } }, "localname": "ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquityTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock": { "auth_ref": [ "r283" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost [Table Text Block]", "terseLabel": "Unrecognized stock based compensation" } } }, "localname": "ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the change in restricted stock units (RSUs).", "label": "Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]", "terseLabel": "Schedule of unvested restricted stock units" } } }, "localname": "ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfVariableInterestEntitiesTable": { "auth_ref": [ "r329", "r330", "r333", "r335", "r336" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of qualitative and quantitative information related to variable interests the entity holds, whether or not such variable interest entity (VIE) is included in the reporting entity's consolidated financial statements. Includes, but is not limited to, description of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a tabular comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.", "label": "Schedule of Variable Interest Entities [Table]", "terseLabel": "Schedule of Variable Interest Entities [Table]" } } }, "localname": "ScheduleOfVariableInterestEntitiesTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfVariableInterestEntitiesTextBlock": { "auth_ref": [ "r329", "r330", "r333", "r335", "r336" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.", "label": "Schedule of Variable Interest Entities [Table Text Block]", "terseLabel": "Schedule of Variable Interest Entities" } } }, "localname": "ScheduleOfVariableInterestEntitiesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock": { "auth_ref": [ "r202" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.", "label": "Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]", "terseLabel": "Schedule of Finite-Lived Intangible Assets, Future Amortization Expense" } } }, "localname": "ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock": { "auth_ref": [ "r151", "r153", "r154", "r155", "r361", "r363" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.", "label": "Schedules of Concentration of Risk, by Risk Factor [Table Text Block]", "terseLabel": "Schedules of concentration of risk, by risk factor" } } }, "localname": "SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConcentrationofCreditRiskandSignificantCustomersTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SegmentReportingPolicyPolicyTextBlock": { "auth_ref": [ "r120" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for segment reporting.", "label": "Segment Reporting, Policy [Policy Text Block]", "terseLabel": "Segment Reporting" } } }, "localname": "SegmentReportingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_SellingAndMarketingExpense": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementsofOperations": { "order": 1.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate total amount of expenses directly related to the marketing or selling of products or services.", "label": "Selling and Marketing Expense", "terseLabel": "Sales and marketing" } } }, "localname": "SellingAndMarketingExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_SellingAndMarketingExpenseMember": { "auth_ref": [ "r87" ], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing selling and marketing expense.", "label": "Selling and Marketing Expense [Member]", "terseLabel": "Sales and marketing" } } }, "localname": "SellingAndMarketingExpenseMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r110" ], "calculation": { "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Share-based Payment Arrangement, Noncash Expense", "terseLabel": "Stock-based compensation" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r257" ], "lang": { "en-us": { "role": { "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period", "terseLabel": "Award vesting period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r271" ], "lang": { "en-us": { "role": { "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r270" ], "lang": { "en-us": { "role": { "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number", "terseLabel": "Equity Awards outstanding under The 2020 Plan (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r270" ], "lang": { "en-us": { "role": { "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "auth_ref": [ "r272" ], "lang": { "en-us": { "role": { "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period", "negatedTerseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r272" ], "lang": { "en-us": { "role": { "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": { "auth_ref": [ "r278" ], "lang": { "en-us": { "role": { "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate", "terseLabel": "Dividend yield" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum", "terseLabel": "Expected volatility, maximum" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum", "terseLabel": "Expected volatility, minimum" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": { "auth_ref": [ "r279" ], "lang": { "en-us": { "role": { "documentation": "The risk-free interest rate assumption that is used in valuing an option on its own shares.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate", "terseLabel": "Risk-free interest rate" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted": { "auth_ref": [ "r267" ], "lang": { "en-us": { "role": { "documentation": "Net number of non-option equity instruments granted to participants.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber": { "auth_ref": [ "r263", "r265" ], "lang": { "en-us": { "role": { "documentation": "Number of equity instruments other than options outstanding, including both vested and non-vested instruments.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of additional shares authorized for issuance under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized", "verboseLabel": "Options authorized (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": { "auth_ref": [ "r259" ], "lang": { "en-us": { "role": { "documentation": "Number of shares authorized for issuance under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized", "terseLabel": "Number of shares authorized by 2020 plan (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": { "auth_ref": [ "r284" ], "lang": { "en-us": { "role": { "documentation": "The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant", "periodEndLabel": "Ending balance, available for grant (in shares)", "periodStartLabel": "Beginning balance, available for grant (in shares)", "terseLabel": "Options available for grant (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]", "terseLabel": "Aggregate Intrinsic Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "auth_ref": [ "r266" ], "lang": { "en-us": { "role": { "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number", "verboseLabel": "Exercisable at period end (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "auth_ref": [ "r266" ], "lang": { "en-us": { "role": { "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price", "terseLabel": "Exercisable at end of period (in usd per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod": { "auth_ref": [ "r269" ], "lang": { "en-us": { "role": { "documentation": "For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period", "negatedLabel": "Options cancelled (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Gross number of share options (or share units) granted during the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross", "terseLabel": "Options granted" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": { "auth_ref": [ "r284" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value", "terseLabel": "Options outstanding, aggregate intrinsic value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "auth_ref": [ "r264", "r284" ], "lang": { "en-us": { "role": { "documentation": "Number of options outstanding, including both vested and non-vested options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number", "periodEndLabel": "Ending balance, Options outstanding (in shares)", "periodStartLabel": "Beginning balance, options outstanding (in shares)", "terseLabel": "Shares issued under company plans (in shares)", "verboseLabel": "Options outstanding under The 2020 Plan (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r263" ], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price", "periodEndLabel": "End of period (in usd per share)", "periodStartLabel": "Beginning of period (in usd per share)", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]", "terseLabel": "Weighted Average Exercise Price per Share" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r254", "r260" ], "lang": { "en-us": { "role": { "documentation": "Award under share-based payment arrangement.", "label": "Award Type [Domain]", "terseLabel": "Award Type [Domain]" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/StockOptionPlansSharebasedPaymentAgreementExpenseDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price", "terseLabel": "Options exercised (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price", "terseLabel": "Options cancelled (in usd per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price", "terseLabel": "Options granted (in shares)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationAwardTrancheOneMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "First portion of award under share-based payment arrangement differentiated by vesting feature, including, but not limited to, performance measure or service period.", "label": "Share-based Payment Arrangement, Tranche One [Member]", "terseLabel": "Share-based Payment Arrangement, Tranche One" } } }, "localname": "ShareBasedCompensationAwardTrancheOneMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationAwardTrancheTwoMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Second portion of award under share-based payment arrangement differentiated by vesting feature, including, but not limited to, performance measure or service period.", "label": "Share-based Payment Arrangement, Tranche Two [Member]", "terseLabel": "Share-based Payment Arrangement, Tranche Two [Member]" } } }, "localname": "ShareBasedCompensationAwardTrancheTwoMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": { "auth_ref": [ "r120", "r256", "r261" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.", "label": "Share-based Payment Arrangement [Policy Text Block]", "terseLabel": "Stock-Based Compensation" } } }, "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_SharePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Price of a single share of a number of saleable stocks of a company.", "label": "Share Price", "terseLabel": "Share Price" } } }, "localname": "SharePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage": { "auth_ref": [ "r257" ], "lang": { "en-us": { "role": { "documentation": "Percentage of vesting of award under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage", "terseLabel": "Percentage of vesting in 1st 12 months" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "percentItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": { "auth_ref": [ "r258" ], "lang": { "en-us": { "role": { "documentation": "Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period", "terseLabel": "Term of stock options" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": { "auth_ref": [ "r277", "r286" ], "lang": { "en-us": { "role": { "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term", "terseLabel": "Weighted average expected life (in years)" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansFairValueAssumptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": { "auth_ref": [ "r284" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value", "terseLabel": "Options exercisable, aggregate intrinsic value" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": { "auth_ref": [ "r284" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term", "terseLabel": "Options exercisable, weighted average remaining contractual term (in years)" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "auth_ref": [ "r275" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term", "terseLabel": "Options outstanding, weighted average remaining contractual term (in years)" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r136" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.", "label": "Significant Accounting Policies [Text Block]", "terseLabel": "Summary of Significant Accounting Policies" } } }, "localname": "SignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/SummaryofSignificantAccountingPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_StateAndLocalJurisdictionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Designated tax department of a state or local government entitled to levy and collect income taxes from the entity.", "label": "State and Local Jurisdiction [Member]", "terseLabel": "State and Local Jurisdiction" } } }, "localname": "StateAndLocalJurisdictionMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StatementClassOfStockAxis": { "auth_ref": [ "r26", "r27", "r28", "r228" ], "lang": { "en-us": { "role": { "documentation": "Information by the different classes of stock of the entity.", "label": "Class of Stock [Axis]", "terseLabel": "Class of Stock [Axis]" } } }, "localname": "StatementClassOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConvertiblePreferredStockDetails", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/NexperiaArrangementDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r66", "r228" ], "lang": { "en-us": { "role": { "documentation": "Information by component of equity.", "label": "Equity Components [Axis]", "terseLabel": "Equity Components [Axis]" } } }, "localname": "StatementEquityComponentsAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Statement [Line Items]", "terseLabel": "Statement [Line Items]" } } }, "localname": "StatementLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "stringItemType" }, "us-gaap_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Cash Flows [Abstract]" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Financial Position [Abstract]" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Comprehensive Income [Abstract]" } } }, "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Stockholders' Equity [Abstract]" } } }, "localname": "StatementOfStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.", "label": "Statement [Table]", "terseLabel": "Statement [Table]" } } }, "localname": "StatementTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities": { "auth_ref": [ "r65", "r228", "r229", "r236" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued during the period as a result of the conversion of convertible securities.", "label": "Stock Issued During Period, Shares, Conversion of Convertible Securities", "terseLabel": "Share conversion in connection with the Merger (in shares)", "verboseLabel": "Conversion of shares in connection with the Reverse Merger (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesNewIssues": { "auth_ref": [ "r27", "r28", "r228", "r236" ], "lang": { "en-us": { "role": { "documentation": "Number of new stock issued during the period.", "label": "Stock Issued During Period, Shares, New Issues", "terseLabel": "Issuance of common stock, net (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesNewIssues", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures": { "auth_ref": [ "r27", "r28", "r228", "r236" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.", "label": "Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures", "terseLabel": "Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures" } } }, "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "auth_ref": [ "r27", "r28", "r228", "r236", "r268" ], "lang": { "en-us": { "role": { "documentation": "Number of share options (or share units) exercised during the current period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period", "negatedLabel": "Options exercised (in shares)", "terseLabel": "Stock options exercised (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockOptionPlansScheduleofOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities": { "auth_ref": [ "r66", "r228", "r236" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The gross value of stock issued during the period upon the conversion of convertible securities.", "label": "Stock Issued During Period, Value, Conversion of Convertible Securities", "terseLabel": "Stock Issued During Period, Value, Conversion of Convertible Securities" } } }, "localname": "StockIssuedDuringPeriodValueConversionOfConvertibleSecurities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueNewIssues": { "auth_ref": [ "r27", "r28", "r228", "r236" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.", "label": "Stock Issued During Period, Value, New Issues", "terseLabel": "Stock Issued During Period, Value, New Issues" } } }, "localname": "StockIssuedDuringPeriodValueNewIssues", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": { "auth_ref": [ "r66", "r228", "r236" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of stock issued as a result of the exercise of stock options.", "label": "Stock Issued During Period, Value, Stock Options Exercised", "terseLabel": "Stock options exercised" } } }, "localname": "StockIssuedDuringPeriodValueStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockRepurchasedDuringPeriodShares": { "auth_ref": [ "r27", "r28", "r228", "r236" ], "lang": { "en-us": { "role": { "documentation": "Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.", "label": "Stock Repurchased During Period, Shares", "negatedTerseLabel": "Shares redeemed (in shares)", "terseLabel": "Shares redeemed (in shares)" } } }, "localname": "StockRepurchasedDuringPeriodShares", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockRepurchasedDuringPeriodValue": { "auth_ref": [ "r27", "r28", "r228", "r236" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.", "label": "Stock Repurchased During Period, Value", "negatedTerseLabel": "Stock Repurchased During Period, Value" } } }, "localname": "StockRepurchasedDuringPeriodValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r28", "r33", "r34", "r178" ], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.", "label": "Stockholders' Equity Attributable to Parent", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "totalLabel": "Total stockholders\u2019 deficit" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedStatementsofChangesinStockholdersDeficit" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Stockholders' Equity Attributable to Parent [Abstract]", "terseLabel": "Stockholders\u2019 deficit:" } } }, "localname": "StockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r319", "r320", "r337" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.", "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest", "terseLabel": "Net deficit" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityNoteDisclosureTextBlock": { "auth_ref": [ "r238" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.", "label": "Stockholders' Equity Note Disclosure [Text Block]", "terseLabel": "Stockholders' Equity" } } }, "localname": "StockholdersEquityNoteDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockholdersEquity" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubsequentEventLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.", "label": "Subsequent Event [Line Items]", "terseLabel": "Subsequent Event [Line Items]" } } }, "localname": "SubsequentEventLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event [Member]", "terseLabel": "Subsequent Event" } } }, "localname": "SubsequentEventMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTable": { "auth_ref": [ "r391" ], "lang": { "en-us": { "role": { "documentation": "Discloses pertinent information about one or more significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued.", "label": "Subsequent Event [Table]", "terseLabel": "Subsequent Event [Table]" } } }, "localname": "SubsequentEventTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r391" ], "lang": { "en-us": { "role": { "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Axis]", "terseLabel": "Subsequent Event Type [Axis]" } } }, "localname": "SubsequentEventTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r391" ], "lang": { "en-us": { "role": { "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Domain]", "terseLabel": "Subsequent Event Type [Domain]" } } }, "localname": "SubsequentEventTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Subsequent Events [Abstract]" } } }, "localname": "SubsequentEventsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventsTextBlock": { "auth_ref": [ "r393" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.", "label": "Subsequent Events [Text Block]", "terseLabel": "Subsequent Events" } } }, "localname": "SubsequentEventsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/SubsequentEvents" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubsidiarySaleOfStockAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of sale of the entity's stock.", "label": "Sale of Stock [Axis]", "terseLabel": "Sale of Stock [Axis]" } } }, "localname": "SubsidiarySaleOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails", "http://transphormusa.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SupplementalCashFlowInformationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "terseLabel": "Supplemental disclosures of cash flow information:" } } }, "localname": "SupplementalCashFlowInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementofCashFlowsStatement" ], "xbrltype": "stringItemType" }, "us-gaap_TaxCreditCarryforwardAmount": { "auth_ref": [ "r306" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.", "label": "Tax Credit Carryforward, Amount", "terseLabel": "Research tax credit carryforward" } } }, "localname": "TaxCreditCarryforwardAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TaxCreditCarryforwardAxis": { "auth_ref": [ "r307" ], "lang": { "en-us": { "role": { "documentation": "Information by specific tax credit related to an unused tax credit.", "label": "Tax Credit Carryforward [Axis]", "terseLabel": "Tax Credit Carryforward [Axis]" } } }, "localname": "TaxCreditCarryforwardAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_TaxCreditCarryforwardNameDomain": { "auth_ref": [ "r307" ], "lang": { "en-us": { "role": { "documentation": "The name of the tax credit carryforward.", "label": "Tax Credit Carryforward, Name [Domain]", "terseLabel": "Tax Credit Carryforward, Name [Domain]" } } }, "localname": "TaxCreditCarryforwardNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TaxPeriodAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information about the period subject to enacted tax laws.", "label": "Tax Period [Axis]", "terseLabel": "Tax Period [Axis]" } } }, "localname": "TaxPeriodAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_TaxPeriodDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Identified tax period.", "label": "Tax Period [Domain]", "terseLabel": "Tax Period [Domain]" } } }, "localname": "TaxPeriodDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TaxYear2018Member": { "auth_ref": [ "r297" ], "lang": { "en-us": { "role": { "documentation": "Identified as tax year 2018.", "label": "Tax Year 2018 [Member]", "terseLabel": "Tax Year 2018" } } }, "localname": "TaxYear2018Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TaxYear2019Member": { "auth_ref": [ "r297" ], "lang": { "en-us": { "role": { "documentation": "Identified as tax year 2019.", "label": "Tax Year 2019 [Member]", "terseLabel": "Tax Year 2019" } } }, "localname": "TaxYear2019Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TemporaryEquityCarryingAmountAttributableToParent": { "auth_ref": [], "calculation": { "http://transphormusa.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.", "label": "Temporary Equity, Carrying Amount, Attributable to Parent", "terseLabel": "Total convertible preferred stock" } } }, "localname": "TemporaryEquityCarryingAmountAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_TemporaryEquityLiquidationPreferencePerShare": { "auth_ref": [ "r62" ], "lang": { "en-us": { "role": { "documentation": "The per share liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.", "label": "Temporary Equity, Liquidation Preference Per Share", "terseLabel": "Convertible preferred stock, liquidation rights per share" } } }, "localname": "TemporaryEquityLiquidationPreferencePerShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_TemporaryEquityParOrStatedValuePerShare": { "auth_ref": [ "r9", "r225" ], "lang": { "en-us": { "role": { "documentation": "Per share amount of par value or stated value of stock classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable.", "label": "Temporary Equity, Par or Stated Value Per Share", "terseLabel": "Convertible preferred stock, par value (in usd per share)" } } }, "localname": "TemporaryEquityParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_TemporaryEquityRedemptionPricePerShare": { "auth_ref": [ "r9", "r225" ], "lang": { "en-us": { "role": { "documentation": "Amount to be paid per share that is classified as temporary equity by entity upon redemption. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.", "label": "Temporary Equity, Redemption Price Per Share", "terseLabel": "Convertible preferred stock, price per share (in usd per share)" } } }, "localname": "TemporaryEquityRedemptionPricePerShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_TemporaryEquitySharesAuthorized": { "auth_ref": [ "r25" ], "lang": { "en-us": { "role": { "documentation": "The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.", "label": "Temporary Equity, Shares Authorized", "terseLabel": "Convertible preferred stock, authorized (in shares)" } } }, "localname": "TemporaryEquitySharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_TemporaryEquitySharesIssued": { "auth_ref": [ "r25" ], "lang": { "en-us": { "role": { "documentation": "The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.", "label": "Temporary Equity, Shares Issued", "terseLabel": "Convertible preferred stock, shares issued (in shares)" } } }, "localname": "TemporaryEquitySharesIssued", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_TemporaryEquitySharesOutstanding": { "auth_ref": [ "r25" ], "lang": { "en-us": { "role": { "documentation": "The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.", "label": "Temporary Equity, Shares Outstanding", "terseLabel": "Convertible preferred stock, shares outstanding (in shares)" } } }, "localname": "TemporaryEquitySharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/ConsolidatedBalanceSheets", "http://transphormusa.com/role/ConsolidatedBalanceSheetsParenthetical", "http://transphormusa.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of new stock classified as temporary equity issued during the period.", "label": "Temporary Equity, Stock Issued During Period, Value, New Issues", "terseLabel": "Issuance of preferred stock" } } }, "localname": "TemporaryEquityStockIssuedDuringPeriodValueNewIssues", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConvertiblePreferredStockNarrativeDetails", "http://transphormusa.com/role/NexperiaArrangementDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TradeAndOtherAccountsReceivablePolicy": { "auth_ref": [ "r172", "r173", "r174", "r175", "r177", "r179" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for accounts receivable.", "label": "Accounts Receivable [Policy Text Block]", "terseLabel": "Accounts Receivable" } } }, "localname": "TradeAndOtherAccountsReceivablePolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r146", "r147", "r149", "r150", "r156", "r157", "r158" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.", "label": "Use of Estimates, Policy [Policy Text Block]", "terseLabel": "Use of Estimates" } } }, "localname": "UseOfEstimates", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/BusinessandBasisofPresentationPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount": { "auth_ref": [ "r292" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.", "label": "Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount", "terseLabel": "Increase in valuation allowance" } } }, "localname": "ValuationAllowanceDeferredTaxAssetChangeInAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableInterestEntityActivityBetweenVIEAndEntityOperatingIncomeOrLoss": { "auth_ref": [ "r334" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of income (loss) from operations derived by the reporting entity during the period from the Variable Interest Entity (VIE).", "label": "Variable Interest Entity, Measure of Activity, Operating Income or Loss", "terseLabel": "Loss" } } }, "localname": "VariableInterestEntityActivityBetweenVIEAndEntityOperatingIncomeOrLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableInterestEntityDisclosureTextBlock": { "auth_ref": [ "r343" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for a variable interest entity (VIE), including but not limited to, judgments and assumptions in determining whether to consolidate and in identifying the primary beneficiary, gain (loss) recognized on the initial consolidation of the VIE, terms of arrangements, amounts and classification of the VIE's assets and liabilities, and the entity's maximum exposure to loss.", "label": "Variable Interest Entity Disclosure [Text Block]", "terseLabel": "Investment in Aizu Fujitsu Semiconductor Water Solution Limited (\"AFSW\")" } } }, "localname": "VariableInterestEntityDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSW" ], "xbrltype": "textBlockItemType" }, "us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount": { "auth_ref": [ "r331" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.", "label": "Variable Interest Entity, Financial or Other Support, Amount", "terseLabel": "Additional financial support provided to investment", "verboseLabel": "Investment" } } }, "localname": "VariableInterestEntityFinancialOrOtherSupportAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableInterestEntityLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Variable Interest Entity [Line Items]", "terseLabel": "Variable Interest Entity [Line Items]" } } }, "localname": "VariableInterestEntityLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableInterestEntityMeasureOfActivityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Variable Interest Entity, Measure of Activity [Abstract]", "terseLabel": "Variable Interest Entity, Measure of Activity [Abstract]" } } }, "localname": "VariableInterestEntityMeasureOfActivityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Variable Interest Entities (VIE) in which the entity does not have a controlling financial interest (as defined) and of which it is therefore not the primary beneficiary. VIEs of which the entity is not the primary beneficiary because it does not have the power to direct the activities of the VIE that most significantly impact the VIE's economic performance and for which it does not have the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE are not included in the consolidated financial statements of the entity.", "label": "Variable Interest Entity, Not Primary Beneficiary [Member]", "terseLabel": "Aizu Fajitsu Semiconductor Wafer Solution Limited" } } }, "localname": "VariableInterestEntityNotPrimaryBeneficiaryMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWIncomeStatementInformationDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails", "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWSummarizedFinancialInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_VariableInterestEntityOwnershipPercentage": { "auth_ref": [ "r332" ], "lang": { "en-us": { "role": { "documentation": "Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).", "label": "Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage", "terseLabel": "Ownership percentage in entity" } } }, "localname": "VariableInterestEntityOwnershipPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/InvestmentinAizuFujitsuSemiconductorWaferSolutionLimitedAFSWNarrativeDetails" ], "xbrltype": "percentItemType" }, "us-gaap_VestingAxis": { "auth_ref": [ "r284" ], "lang": { "en-us": { "role": { "documentation": "Information by vesting schedule of award under share-based payment arrangement.", "label": "Vesting [Axis]", "terseLabel": "Vesting [Axis]" } } }, "localname": "VestingAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VestingDomain": { "auth_ref": [ "r284" ], "lang": { "en-us": { "role": { "documentation": "Vesting schedule of award under share-based payment arrangement.", "label": "Vesting [Domain]", "terseLabel": "Vesting [Domain]" } } }, "localname": "VestingDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/StockOptionPlansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WarrantMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Security that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount.", "label": "Warrant [Member]", "terseLabel": "Warrant" } } }, "localname": "WarrantMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/AccountingPoliciesDetails", "http://transphormusa.com/role/BusinessandBasisofPresentationDetails", "http://transphormusa.com/role/StockholdersEquityReservedCommonStockDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).", "label": "Weighted Average Number of Shares Outstanding, Basic and Diluted", "terseLabel": "Weighted average common shares outstanding - basic and diluted" } } }, "localname": "WeightedAverageNumberOfShareOutstandingBasicAndDiluted", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://transphormusa.com/role/ConsolidatedStatementsofOperations" ], "xbrltype": "sharesItemType" } }, "unitCount": 7 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755" }, "r1": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "205", "URI": "http://asc.fasb.org/topic&trid=2122149" }, "r10": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r100": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "21D", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=SL94080555-108585" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585" }, "r11": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(10))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585" }, "r111": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4273-108586" }, "r115": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586" }, "r118": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586" }, "r119": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(11))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(d))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r123": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r124": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(i))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(k)(1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(k))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r127": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(m)(1)(iii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(d),(e))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(e),(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(12))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r130": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(h)(2))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(i)(4))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(i))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(k)(1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-04.(a))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690" }, "r136": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(13))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1337-109256" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e543-108305" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(14))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592" }, "r151": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592" }, "r153": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592" }, "r155": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6442-108592" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592" }, "r157": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592" }, "r158": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592" }, "r159": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r16": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(15))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r160": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r161": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r162": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r163": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r164": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r166": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9031-108599" }, "r17": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(16))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "42", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9054-108599" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e4975-111524" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5033-111524" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5093-111524" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 4.E)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707" }, "r179": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(17))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r182": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r184": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r185": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "10", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=116846819&loc=d3e3927-108312" }, "r187": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4492-108314" }, "r188": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314" }, "r189": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4556-108314" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(19))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r190": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.BB)", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729" }, "r191": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "330", "URI": "http://asc.fasb.org/topic&trid=2126998" }, "r192": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266" }, "r193": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266" }, "r194": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267" }, "r196": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267" }, "r197": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274" }, "r199": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r2": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765" }, "r20": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(20))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r202": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r203": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r204": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(2)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(3)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r207": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275" }, "r208": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "350", "URI": "http://asc.fasb.org/topic&trid=2144416" }, "r209": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r21": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(22))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r212": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230" }, "r213": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r214": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "360", "URI": "http://asc.fasb.org/topic&trid=2155823" }, "r215": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14615-108349" }, "r218": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601" }, "r22": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(25))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870" }, "r223": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r224": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(CFRR 211.02)", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764" }, "r225": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21553-112644" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644" }, "r23": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(26)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644" }, "r233": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3-04)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "50", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775" }, "r238": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "505", "URI": "http://asc.fasb.org/topic&trid=2208762" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(26)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r240": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045" }, "r243": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045" }, "r244": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045" }, "r245": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046" }, "r248": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(01)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r251": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(n)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921" }, "r253": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "715", "URI": "http://asc.fasb.org/topic&trid=2235017" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r256": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r257": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r26": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b),(f)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r262": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(3)-(4)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r27": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(28))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r272": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r273": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r277": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r278": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r279": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(iv)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r28": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(29))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r283": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r284": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r285": { "Name": "Accounting Standards Codification", "Paragraph": "2A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=SL79508275-113901" }, "r286": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.D.2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.F)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809" }, "r288": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "730", "URI": "http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373" }, "r29": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(3)(a)(2))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r290": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314" }, "r292": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32123-109318" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32247-109318" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32280-109318" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319" }, "r296": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319" }, "r298": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319" }, "r3": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765" }, "r30": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r302": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b),(c)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32847-109319" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319" }, "r307": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319" }, "r308": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319" }, "r309": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319" }, "r31": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r310": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "05", "SubTopic": "30", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=65884525&loc=d3e40913-109327" }, "r313": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "38", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5504-128473" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "808", "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434" }, "r316": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "808", "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434" }, "r317": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "808", "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434" }, "r318": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "808", "URI": "http://asc.fasb.org/topic&trid=5833765" }, "r319": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683" }, "r32": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683" }, "r322": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r325": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r326": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r327": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c),(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5710-111685" }, "r33": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5728-111685" }, "r331": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685" }, "r333": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685" }, "r334": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "d", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5747-111685" }, "r335": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5747-111685" }, "r336": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6228884-111685" }, "r337": { "Name": "Accounting Standards Codification", "Paragraph": "4I", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686" }, "r338": { "Name": "Accounting Standards Codification", "Paragraph": "4J", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "4K", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(31))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r340": { "Name": "Accounting Standards Codification", "Paragraph": "4M", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591554-111686" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3A-02)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355033-122828" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3A-03)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355100-122828" }, "r343": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "810", "URI": "http://asc.fasb.org/topic&trid=2197479" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "182", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=116861445&loc=SL5629052-113961" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(32))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r356": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258" }, "r359": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13467-108611" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r360": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13476-108611" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611" }, "r362": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611" }, "r363": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611" }, "r364": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r365": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r366": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612" }, "r367": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612" }, "r368": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14210-108612" }, "r369": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14217-108612" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(5))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r370": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895" }, "r371": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906" }, "r372": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901" }, "r373": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399" }, "r376": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399" }, "r377": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400" }, "r379": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(Note 3)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r380": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r386": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864" }, "r387": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864" }, "r388": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39678-107864" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a)(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r390": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "850", "URI": "http://asc.fasb.org/topic&trid=2122745" }, "r391": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r392": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314020-165662" }, "r393": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "855", "URI": "http://asc.fasb.org/topic&trid=2122774" }, "r394": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r395": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r398": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "730", "Topic": "912", "URI": "http://asc.fasb.org/extlink&oid=6472174&loc=d3e58812-109433" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "340", "Topic": "928", "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765" }, "r40": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447" }, "r401": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447" }, "r402": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447" }, "r403": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447" }, "r404": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447" }, "r405": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447" }, "r406": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447" }, "r407": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447" }, "r408": { "Name": "Accounting Standards Codification", "Paragraph": "35A", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447" }, "r409": { "Name": "Accounting Standards Codification", "Paragraph": "35A", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r410": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(c)(1)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447" }, "r411": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(c)(2)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447" }, "r412": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(11))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(13))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r414": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(15)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r415": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(16))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(17))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r417": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(23))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r418": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(7)(d))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.15(3),(4))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r420": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.15(5))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r421": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.17)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r422": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(11))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r423": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(13)(f))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r424": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r425": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.9)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r426": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823" }, "r427": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "825", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=108315417&loc=d3e61044-112788" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(15)(b)(2))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r429": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r43": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(c))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(12))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r431": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r432": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(19))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r434": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(25))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r435": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(3))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r436": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(5))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r438": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.(a),19)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.15(a))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r44": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(7))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r440": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.17)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r441": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(10))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263" }, "r442": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(18))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263" }, "r443": { "Name": "Accounting Standards Codification", "Paragraph": "4H", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438" }, "r444": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441" }, "r445": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(b)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441" }, "r446": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(c)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441" }, "r447": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "825", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=99380617&loc=SL75241803-196195" }, "r448": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "210", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "45", "SubTopic": "210", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840" }, "r45": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(8))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.6-04.16(a))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996" }, "r451": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.6-06(3))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e604059-122996" }, "r452": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.6-07.1(c))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272" }, "r453": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "310", "Subparagraph": "(SX 210.12-29(Footnote 4))", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014" }, "r454": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "740", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650" }, "r455": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Footnote 2))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024" }, "r456": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Footnote 4))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "985", "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756" }, "r458": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r459": { "Name": "Securities Act", "Number": "7A", "Publisher": "SEC", "Section": "B", "Subsection": "2" }, "r46": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.1)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r47": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.12)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r48": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r49": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6801-107765" }, "r50": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.14)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r51": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.17)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r52": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(b),22(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r53": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19,20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19,20,22)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19-26)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r57": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.21)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(5))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r6": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6904-107765" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r61": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.25)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.28(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r63": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.28,29)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-30)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-31)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.6(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.6(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.9)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6911-107765" }, "r70": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "17B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580" }, "r77": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580" }, "r78": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580" }, "r81": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e557-108580" }, "r82": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116657188&loc=SL116659661-227067" }, "r83": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(210.5-03(11))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(1))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(12))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(20))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(4))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r89": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.1(e))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r9": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(27)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.1,2)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.2)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.20)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.4)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.8)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r95": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.9)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r96": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585" } }, "version": "2.1" }