3.22.0.1 html 402 611 1 true 145 0 false 4 false false R1.htm 000 - Document - Document And Entity Information Sheet http://altoingredients.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 001 - Statement - Consolidated Balance Sheets Sheet http://altoingredients.com/role/ConsolidatedBalanceSheet Consolidated Balance Sheets Statements 2 false false R3.htm 002 - Statement - Consolidated Balance Sheets (Parentheticals) Sheet http://altoingredients.com/role/ConsolidatedBalanceSheet_Parentheticals Consolidated Balance Sheets (Parentheticals) Statements 3 false false R4.htm 003 - Statement - Consolidated Statements of Operations Sheet http://altoingredients.com/role/ConsolidatedIncomeStatement Consolidated Statements of Operations Statements 4 false false R5.htm 004 - Statement - Consolidated Statements of Comprehensive Income (Loss) Sheet http://altoingredients.com/role/ConsolidatedComprehensiveIncome Consolidated Statements of Comprehensive Income (Loss) Statements 5 false false R6.htm 005 - Statement - Consolidated Statements of Stockholders??? Equity Sheet http://altoingredients.com/role/ShareholdersEquityType2or3 Consolidated Statements of Stockholders??? Equity Statements 6 false false R7.htm 006 - Statement - Consolidated Statements of Cash Flows (unaudited) Sheet http://altoingredients.com/role/ConsolidatedCashFlow Consolidated Statements of Cash Flows (unaudited) Statements 7 false false R8.htm 007 - Disclosure - Organization and Significant Accounting Policies Sheet http://altoingredients.com/role/OrganizationandSignificantAccountingPolicies Organization and Significant Accounting Policies Notes 8 false false R9.htm 008 - Disclosure - Asset Sales and Held-For-Sale Classification Sheet http://altoingredients.com/role/AssetSalesandHeldForSaleClassification Asset Sales and Held-For-Sale Classification Notes 9 false false R10.htm 009 - Disclosure - Intercompany Agreements Sheet http://altoingredients.com/role/IntercompanyAgreements Intercompany Agreements Notes 10 false false R11.htm 010 - Disclosure - Segments Sheet http://altoingredients.com/role/Segments Segments Notes 11 false false R12.htm 011 - Disclosure - Property and Equipment Sheet http://altoingredients.com/role/PropertyandEquipment Property and Equipment Notes 12 false false R13.htm 012 - Disclosure - Derivatives Sheet http://altoingredients.com/role/Derivatives Derivatives Notes 13 false false R14.htm 013 - Disclosure - Debt Sheet http://altoingredients.com/role/Debt Debt Notes 14 false false R15.htm 014 - Disclosure - Leases Sheet http://altoingredients.com/role/Leases Leases Notes 15 false false R16.htm 015 - Disclosure - Pension Plans Sheet http://altoingredients.com/role/PensionPlans Pension Plans Notes 16 false false R17.htm 016 - Disclosure - Income Taxes Sheet http://altoingredients.com/role/IncomeTaxes Income Taxes Notes 17 false false R18.htm 017 - Disclosure - Preferred Stock Sheet http://altoingredients.com/role/PreferredStock Preferred Stock Notes 18 false false R19.htm 018 - Disclosure - Common Stock and Warrants Sheet http://altoingredients.com/role/CommonStockandWarrants Common Stock and Warrants Notes 19 false false R20.htm 019 - Disclosure - Stock-Based Compensation Sheet http://altoingredients.com/role/StockBasedCompensation Stock-Based Compensation Notes 20 false false R21.htm 020 - Disclosure - Commitments and Contingencies Sheet http://altoingredients.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 21 false false R22.htm 021 - Disclosure - Fair Value Measurements. Sheet http://altoingredients.com/role/FairValueMeasurements Fair Value Measurements. Notes 22 false false R23.htm 022 - Disclosure - Subsequent Events Sheet http://altoingredients.com/role/SubsequentEvents Subsequent Events Notes 23 false false R24.htm 023 - Disclosure - Accounting Policies, by Policy (Policies) Sheet http://altoingredients.com/role/AccountingPoliciesByPolicy Accounting Policies, by Policy (Policies) Policies http://altoingredients.com/role/OrganizationandSignificantAccountingPolicies 24 false false R25.htm 024 - Disclosure - Organization and Significant Accounting Policies (Tables) Sheet http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesTables Organization and Significant Accounting Policies (Tables) Tables http://altoingredients.com/role/OrganizationandSignificantAccountingPolicies 25 false false R26.htm 025 - Disclosure - Segments (Tables) Sheet http://altoingredients.com/role/SegmentsTables Segments (Tables) Tables http://altoingredients.com/role/Segments 26 false false R27.htm 026 - Disclosure - Property and Equipment (Tables) Sheet http://altoingredients.com/role/PropertyandEquipmentTables Property and Equipment (Tables) Tables http://altoingredients.com/role/PropertyandEquipment 27 false false R28.htm 027 - Disclosure - Derivatives (Tables) Sheet http://altoingredients.com/role/DerivativesTables Derivatives (Tables) Tables http://altoingredients.com/role/Derivatives 28 false false R29.htm 028 - Disclosure - Debt (Tables) Sheet http://altoingredients.com/role/DebtTables Debt (Tables) Tables http://altoingredients.com/role/Debt 29 false false R30.htm 029 - Disclosure - Leases (Tables) Sheet http://altoingredients.com/role/LeasesTables Leases (Tables) Tables http://altoingredients.com/role/Leases 30 false false R31.htm 030 - Disclosure - Pension Plans (Tables) Sheet http://altoingredients.com/role/PensionPlansTables Pension Plans (Tables) Tables http://altoingredients.com/role/PensionPlans 31 false false R32.htm 031 - Disclosure - Income Taxes (Tables) Sheet http://altoingredients.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://altoingredients.com/role/IncomeTaxes 32 false false R33.htm 032 - Disclosure - Common Stock and Warrants (Tables) Sheet http://altoingredients.com/role/CommonStockandWarrantsTables Common Stock and Warrants (Tables) Tables http://altoingredients.com/role/CommonStockandWarrants 33 false false R34.htm 033 - Disclosure - Stock-Based Compensation (Tables) Sheet http://altoingredients.com/role/StockBasedCompensationTables Stock-Based Compensation (Tables) Tables http://altoingredients.com/role/StockBasedCompensation 34 false false R35.htm 034 - Disclosure - Fair Value Measurements. (Tables) Sheet http://altoingredients.com/role/FairValueMeasurementsTables Fair Value Measurements. (Tables) Tables http://altoingredients.com/role/FairValueMeasurements 35 false false R36.htm 035 - Disclosure - Organization and Significant Accounting Policies (Details) Sheet http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesDetails Organization and Significant Accounting Policies (Details) Details http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesTables 36 false false R37.htm 036 - Disclosure - Organization and Significant Accounting Policies (Details) - Schedule of sold to customers representing 10% or more of the Company???s total net sales Sheet http://altoingredients.com/role/Scheduleofsoldtocustomersrepresenting10ormoreoftheCompanystotalnetsalesTable Organization and Significant Accounting Policies (Details) - Schedule of sold to customers representing 10% or more of the Company???s total net sales Details http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesTables 37 false false R38.htm 037 - Disclosure - Organization and Significant Accounting Policies (Details) - Schedule of purchased corn from suppliers representing 10% or more of the Company???s total corn purchases Sheet http://altoingredients.com/role/Scheduleofpurchasedcornfromsuppliersrepresenting10ormoreoftheCompanystotalcornpurchasesTable Organization and Significant Accounting Policies (Details) - Schedule of purchased corn from suppliers representing 10% or more of the Company???s total corn purchases Details http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesTables 38 false false R39.htm 038 - Disclosure - Organization and Significant Accounting Policies (Details) - Schedule of inventories Sheet http://altoingredients.com/role/ScheduleofinventoriesTable Organization and Significant Accounting Policies (Details) - Schedule of inventories Details http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesTables 39 false false R40.htm 039 - Disclosure - Organization and Significant Accounting Policies (Details) - Schedule of depreciation is computed using the straight-line method Sheet http://altoingredients.com/role/ScheduleofdepreciationiscomputedusingthestraightlinemethodTable Organization and Significant Accounting Policies (Details) - Schedule of depreciation is computed using the straight-line method Details http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesTables 40 false false R41.htm 040 - Disclosure - Organization and Significant Accounting Policies (Details) - Schedule of basic and diluted earnings per share Sheet http://altoingredients.com/role/ScheduleofbasicanddilutedearningspershareTable Organization and Significant Accounting Policies (Details) - Schedule of basic and diluted earnings per share Details http://altoingredients.com/role/OrganizationandSignificantAccountingPoliciesTables 41 false false R42.htm 041 - Disclosure - Asset Sales and Held-For-Sale Classification (Details) Sheet http://altoingredients.com/role/AssetSalesandHeldForSaleClassificationDetails Asset Sales and Held-For-Sale Classification (Details) Details http://altoingredients.com/role/AssetSalesandHeldForSaleClassification 42 false false R43.htm 042 - Disclosure - Intercompany Agreements (Details) Sheet http://altoingredients.com/role/IntercompanyAgreementsDetails Intercompany Agreements (Details) Details http://altoingredients.com/role/IntercompanyAgreements 43 false false R44.htm 043 - Disclosure - Segments (Details) Sheet http://altoingredients.com/role/SegmentsDetails Segments (Details) Details http://altoingredients.com/role/SegmentsTables 44 false false R45.htm 044 - Disclosure - Segments (Details) - Schedule of financial data for operating segments Sheet http://altoingredients.com/role/ScheduleoffinancialdataforoperatingsegmentsTable Segments (Details) - Schedule of financial data for operating segments Details http://altoingredients.com/role/SegmentsTables 45 false false R46.htm 045 - Disclosure - Segments (Details) - Schedule of assets by operating segments Sheet http://altoingredients.com/role/ScheduleofassetsbyoperatingsegmentsTable Segments (Details) - Schedule of assets by operating segments Details http://altoingredients.com/role/SegmentsTables 46 false false R47.htm 046 - Disclosure - Property and Equipment (Details) Sheet http://altoingredients.com/role/PropertyandEquipmentDetails Property and Equipment (Details) Details http://altoingredients.com/role/PropertyandEquipmentTables 47 false false R48.htm 047 - Disclosure - Property and Equipment (Details) - Schedule of property and equipment Sheet http://altoingredients.com/role/ScheduleofpropertyandequipmentTable Property and Equipment (Details) - Schedule of property and equipment Details http://altoingredients.com/role/PropertyandEquipmentTables 48 false false R49.htm 048 - Disclosure - Derivatives (Details) Sheet http://altoingredients.com/role/DerivativesDetails Derivatives (Details) Details http://altoingredients.com/role/DerivativesTables 49 false false R50.htm 049 - Disclosure - Derivatives (Details) - Schedule of derivatives not designated as hedging instruments Sheet http://altoingredients.com/role/ScheduleofderivativesnotdesignatedashedginginstrumentsTable Derivatives (Details) - Schedule of derivatives not designated as hedging instruments Details http://altoingredients.com/role/DerivativesTables 50 false false R51.htm 050 - Disclosure - Derivatives (Details) - Schedule of recognized gains (losses) for derivatives Sheet http://altoingredients.com/role/ScheduleofrecognizedgainslossesforderivativesTable Derivatives (Details) - Schedule of recognized gains (losses) for derivatives Details http://altoingredients.com/role/DerivativesTables 51 false false R52.htm 051 - Disclosure - Debt (Details) Sheet http://altoingredients.com/role/DebtDetails Debt (Details) Details http://altoingredients.com/role/DebtTables 52 false false R53.htm 052 - Disclosure - Debt (Details) - Schedule of long-term borrowings Sheet http://altoingredients.com/role/ScheduleoflongtermborrowingsTable Debt (Details) - Schedule of long-term borrowings Details http://altoingredients.com/role/DebtTables 53 false false R54.htm 053 - Disclosure - Debt (Details) - Schedule of maturities of long-term debt Sheet http://altoingredients.com/role/ScheduleofmaturitiesoflongtermdebtTable Debt (Details) - Schedule of maturities of long-term debt Details http://altoingredients.com/role/DebtTables 54 false false R55.htm 054 - Disclosure - Leases (Details) Sheet http://altoingredients.com/role/LeasesDetails Leases (Details) Details http://altoingredients.com/role/LeasesTables 55 false false R56.htm 055 - Disclosure - Leases (Details) - Schedule of leases Sheet http://altoingredients.com/role/ScheduleofleasesTable Leases (Details) - Schedule of leases Details http://altoingredients.com/role/LeasesTables 56 false false R57.htm 056 - Disclosure - Leases (Details) - Schedule of components of lease costs Sheet http://altoingredients.com/role/ScheduleofcomponentsofleasecostsTable Leases (Details) - Schedule of components of lease costs Details http://altoingredients.com/role/LeasesTables 57 false false R58.htm 057 - Disclosure - Leases (Details) - Schedule of operating lease liabilities Sheet http://altoingredients.com/role/ScheduleofoperatingleaseliabilitiesTable Leases (Details) - Schedule of operating lease liabilities Details http://altoingredients.com/role/LeasesTables 58 false false R59.htm 058 - Disclosure - Pension Plans (Details) Sheet http://altoingredients.com/role/PensionPlansDetails Pension Plans (Details) Details http://altoingredients.com/role/PensionPlansTables 59 false false R60.htm 059 - Disclosure - Pension Plans (Details) - Schedule of information related to the retirement plan Sheet http://altoingredients.com/role/ScheduleofinformationrelatedtotheretirementplanTable Pension Plans (Details) - Schedule of information related to the retirement plan Details http://altoingredients.com/role/PensionPlansTables 60 false false R61.htm 060 - Disclosure - Pension Plans (Details) - Schedule of components of net periodic benefit costs Sheet http://altoingredients.com/role/ScheduleofcomponentsofnetperiodicbenefitcostsTable Pension Plans (Details) - Schedule of components of net periodic benefit costs Details http://altoingredients.com/role/PensionPlansTables 61 false false R62.htm 061 - Disclosure - Pension Plans (Details) - Schedule of expected benefit payments Sheet http://altoingredients.com/role/ScheduleofexpectedbenefitpaymentsTable Pension Plans (Details) - Schedule of expected benefit payments Details http://altoingredients.com/role/PensionPlansTables 62 false false R63.htm 062 - Disclosure - Pension Plans (Details) - Schedule of information related to the retirement plan Sheet http://altoingredients.com/role/ScheduleofinformationrelatedtotheretirementplanTable0 Pension Plans (Details) - Schedule of information related to the retirement plan Details http://altoingredients.com/role/PensionPlansTables 63 false false R64.htm 063 - Disclosure - Pension Plans (Details) - Schedule of components of net periodic benefit costs Sheet http://altoingredients.com/role/ScheduleofcomponentsofnetperiodicbenefitcostsTable0 Pension Plans (Details) - Schedule of components of net periodic benefit costs Details http://altoingredients.com/role/PensionPlansTables 64 false false R65.htm 064 - Disclosure - Pension Plans (Details) - Schedule of expected benefit payments Sheet http://altoingredients.com/role/ScheduleofexpectedbenefitpaymentsTable0 Pension Plans (Details) - Schedule of expected benefit payments Details http://altoingredients.com/role/PensionPlansTables 65 false false R66.htm 065 - Disclosure - Income Taxes (Details) Sheet http://altoingredients.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://altoingredients.com/role/IncomeTaxesTables 66 false false R67.htm 066 - Disclosure - Income Taxes (Details) - Schedule of provision for income taxes Sheet http://altoingredients.com/role/ScheduleofprovisionforincometaxesTable Income Taxes (Details) - Schedule of provision for income taxes Details http://altoingredients.com/role/IncomeTaxesTables 67 false false R68.htm 067 - Disclosure - Income Taxes (Details) - Schedule of reconciliation of effective tax rate Sheet http://altoingredients.com/role/ScheduleofreconciliationofeffectivetaxrateTable Income Taxes (Details) - Schedule of reconciliation of effective tax rate Details http://altoingredients.com/role/IncomeTaxesTables 68 false false R69.htm 068 - Disclosure - Income Taxes (Details) - Schedule of components of deferred income taxes Sheet http://altoingredients.com/role/ScheduleofcomponentsofdeferredincometaxesTable Income Taxes (Details) - Schedule of components of deferred income taxes Details http://altoingredients.com/role/IncomeTaxesTables 69 false false R70.htm 069 - Disclosure - Income Taxes (Details) - Schedule of net operating loss carryforwards Sheet http://altoingredients.com/role/ScheduleofnetoperatinglosscarryforwardsTable Income Taxes (Details) - Schedule of net operating loss carryforwards Details http://altoingredients.com/role/IncomeTaxesTables 70 false false R71.htm 070 - Disclosure - Income Taxes (Details) - Schedule of income tax in the United States jurisdiction and various state jurisdictions Sheet http://altoingredients.com/role/ScheduleofincometaxintheUnitedStatesjurisdictionandvariousstatejurisdictionsTable Income Taxes (Details) - Schedule of income tax in the United States jurisdiction and various state jurisdictions Details http://altoingredients.com/role/IncomeTaxesTables 71 false false R72.htm 071 - Disclosure - Preferred Stock (Details) Sheet http://altoingredients.com/role/PreferredStockDetails Preferred Stock (Details) Details http://altoingredients.com/role/PreferredStock 72 false false R73.htm 072 - Disclosure - Common Stock and Warrants (Details) Sheet http://altoingredients.com/role/CommonStockandWarrantsDetails Common Stock and Warrants (Details) Details http://altoingredients.com/role/CommonStockandWarrantsTables 73 false false R74.htm 073 - Disclosure - Common Stock and Warrants (Details) - Schedule of warrant activity Sheet http://altoingredients.com/role/ScheduleofwarrantactivityTable Common Stock and Warrants (Details) - Schedule of warrant activity Details http://altoingredients.com/role/CommonStockandWarrantsTables 74 false false R75.htm 074 - Disclosure - Stock-Based Compensation (Details) Sheet http://altoingredients.com/role/StockBasedCompensationDetails Stock-Based Compensation (Details) Details http://altoingredients.com/role/StockBasedCompensationTables 75 false false R76.htm 075 - Disclosure - Stock-Based Compensation (Details) - Schedule of stock option plans Sheet http://altoingredients.com/role/ScheduleofstockoptionplansTable Stock-Based Compensation (Details) - Schedule of stock option plans Details http://altoingredients.com/role/StockBasedCompensationTables 76 false false R77.htm 076 - Disclosure - Stock-Based Compensation (Details) - Schedule of stock options outstanding Sheet http://altoingredients.com/role/ScheduleofstockoptionsoutstandingTable Stock-Based Compensation (Details) - Schedule of stock options outstanding Details http://altoingredients.com/role/StockBasedCompensationTables 77 false false R78.htm 077 - Disclosure - Stock-Based Compensation (Details) - Schedule of unvested restricted stock activity Sheet http://altoingredients.com/role/ScheduleofunvestedrestrictedstockactivityTable Stock-Based Compensation (Details) - Schedule of unvested restricted stock activity Details http://altoingredients.com/role/StockBasedCompensationTables 78 false false R79.htm 078 - Disclosure - Stock-Based Compensation (Details) - Schedule of common stock at vesting aggregated Sheet http://altoingredients.com/role/ScheduleofcommonstockatvestingaggregatedTable Stock-Based Compensation (Details) - Schedule of common stock at vesting aggregated Details http://altoingredients.com/role/StockBasedCompensationTables 79 false false R80.htm 079 - Disclosure - Commitments and Contingencies (Details) Sheet http://altoingredients.com/role/CommitmentsandContingenciesDetails Commitments and Contingencies (Details) Details http://altoingredients.com/role/CommitmentsandContingencies 80 false false R81.htm 080 - Disclosure - Fair Value Measurements. (Details) Sheet http://altoingredients.com/role/FairValueMeasurementsDetails Fair Value Measurements. (Details) Details http://altoingredients.com/role/FairValueMeasurementsTables 81 false false R82.htm 081 - Disclosure - Fair Value Measurements. (Details) - Schedule of used and related fair value for the warrants Sheet http://altoingredients.com/role/ScheduleofusedandrelatedfairvalueforthewarrantsTable Fair Value Measurements. (Details) - Schedule of used and related fair value for the warrants Details http://altoingredients.com/role/FairValueMeasurementsTables 82 false false R83.htm 082 - Disclosure - Fair Value Measurements. (Details) - Schedule of fair value of pre-funded warrants and other warrants Sheet http://altoingredients.com/role/ScheduleoffairvalueofprefundedwarrantsandotherwarrantsTable Fair Value Measurements. (Details) - Schedule of fair value of pre-funded warrants and other warrants Details http://altoingredients.com/role/FairValueMeasurementsTables 83 false false R84.htm 083 - Disclosure - Fair Value Measurements. (Details) - Schedule of fair values of warrants based on unobservable inputs Sheet http://altoingredients.com/role/ScheduleoffairvaluesofwarrantsbasedonunobservableinputsTable Fair Value Measurements. (Details) - Schedule of fair values of warrants based on unobservable inputs Details http://altoingredients.com/role/FairValueMeasurementsTables 84 false false R85.htm 084 - Disclosure - Fair Value Measurements. (Details) - Schedule of recurring and nonrecurring fair value measurements Sheet http://altoingredients.com/role/ScheduleofrecurringandnonrecurringfairvaluemeasurementsTable Fair Value Measurements. (Details) - Schedule of recurring and nonrecurring fair value measurements Details http://altoingredients.com/role/FairValueMeasurementsTables 85 false false R86.htm 085 - Disclosure - Subsequent Events (Details) Sheet http://altoingredients.com/role/SubsequentEventsDetails Subsequent Events (Details) Details http://altoingredients.com/role/SubsequentEvents 86 false false All Reports Book All Reports f10k2021_altoingredients.htm alto-20211231.xsd alto-20211231_cal.xml alto-20211231_def.xml alto-20211231_lab.xml alto-20211231_pre.xml f10k2021ex10-20_altoingred.htm f10k2021ex10-21_altoingred.htm f10k2021ex10-9_altoingred.htm f10k2021ex2-3_altoingred.htm f10k2021ex21-1_altoingred.htm f10k2021ex23-1_altoingred.htm f10k2021ex31-1_altoingred.htm f10k2021ex31-2_altoingred.htm f10k2021ex32-1_altoingred.htm img_001.jpg http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true