3.26.1 html 334 195 1 true 54 0 false 4 false false R1.htm 995100 - Document - Cover Sheet http://xbrl.sec.gov/dei/role/document/Cover Cover Cover 1 false false R2.htm 995301 - Statement - Statements of Assets and Liabilities Sheet http://www.princetoncapitalcorp.com/role/ConsolidatedBalanceSheet Statements of Assets and Liabilities Statements 2 false false R3.htm 995302 - Statement - Statements of Assets and Liabilities (Parentheticals) Sheet http://www.princetoncapitalcorp.com/role/ConsolidatedBalanceSheet_Parentheticals Statements of Assets and Liabilities (Parentheticals) Statements 3 false false R4.htm 995303 - Statement - Statements of Operations (Unaudited) Sheet http://www.princetoncapitalcorp.com/role/ConsolidatedIncomeStatement Statements of Operations (Unaudited) Statements 4 false false R5.htm 995304 - Statement - Statements of Changes in Net Assets (Unaudited) Sheet http://www.princetoncapitalcorp.com/role/StatementsofChangesinNetAssetsUnauditedTable Statements of Changes in Net Assets (Unaudited) Statements 5 false false R6.htm 995305 - Statement - Statements of Cash Flows (Unaudited) Sheet http://www.princetoncapitalcorp.com/role/ConsolidatedCashFlow Statements of Cash Flows (Unaudited) Statements 6 false false R7.htm 995306 - Statement - Schedule of Investments (Unaudited) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofInvestmentsUnauditedTable Schedule of Investments (Unaudited) Statements 7 false false R8.htm 995307 - Statement - Schedule of Investments (Unaudited) (Parentheticals) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofInvestmentsUnauditedTable_Parentheticals Schedule of Investments (Unaudited) (Parentheticals) Statements 8 false false R9.htm 995308 - Statement - Schedule of Fair Value of our Portfolio of Investments (Unaudited) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofFairValueofourPortfolioofInvestmentsUnauditedTable Schedule of Fair Value of our Portfolio of Investments (Unaudited) Statements 9 false false R10.htm 995309 - Disclosure - Nature of Operations Sheet http://www.princetoncapitalcorp.com/role/NatureofOperations Nature of Operations Notes 10 false false R11.htm 995310 - Disclosure - Significant Accounting Policies Sheet http://www.princetoncapitalcorp.com/role/SignificantAccountingPolicies Significant Accounting Policies Notes 11 false false R12.htm 995311 - Disclosure - Concentration of Credit Risk Sheet http://www.princetoncapitalcorp.com/role/ConcentrationofCreditRisk Concentration of Credit Risk Notes 12 false false R13.htm 995312 - Disclosure - Net Increase (Decrease) in Net Assets Resulting From Operations Per Common Share Sheet http://www.princetoncapitalcorp.com/role/NetIncreaseDecreaseinNetAssetsResultingFromOperationsPerCommonShare Net Increase (Decrease) in Net Assets Resulting From Operations Per Common Share Notes 13 false false R14.htm 995313 - Disclosure - Fair Value of Investments Sheet http://www.princetoncapitalcorp.com/role/FairValueofInvestments Fair Value of Investments Notes 14 false false R15.htm 995314 - Disclosure - Related Party Transactions Sheet http://www.princetoncapitalcorp.com/role/RelatedPartyTransactions Related Party Transactions Notes 15 false false R16.htm 995315 - Disclosure - Financial Highlights Sheet http://www.princetoncapitalcorp.com/role/FinancialHighlights Financial Highlights Notes 16 false false R17.htm 995316 - Disclosure - Commitments and Contingencies Sheet http://www.princetoncapitalcorp.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 17 false false R18.htm 995317 - Disclosure - Unconsolidated Significant Subsidiaries Sheet http://www.princetoncapitalcorp.com/role/UnconsolidatedSignificantSubsidiaries Unconsolidated Significant Subsidiaries Notes 18 false false R19.htm 995318 - Disclosure - Segment Information Sheet http://www.princetoncapitalcorp.com/role/SegmentInformation Segment Information Notes 19 false false R20.htm 995319 - Disclosure - Subsequent Events Sheet http://www.princetoncapitalcorp.com/role/SubsequentEvents Subsequent Events Notes 20 false false R21.htm 995320 - Disclosure - Schedule 12-14 Sheet http://www.princetoncapitalcorp.com/role/Schedule1214 Schedule 12-14 Notes 21 false false R22.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 22 false false R23.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 23 false false R24.htm 995470 - Disclosure - N-2 Sheet http://xbrl.sec.gov/cef/role/N2 N-2 Notes 24 false false R25.htm 996000 - Disclosure - Accounting Policies, by Policy (Policies) Sheet http://www.princetoncapitalcorp.com/role/AccountingPoliciesByPolicy Accounting Policies, by Policy (Policies) Policies http://www.princetoncapitalcorp.com/role/SignificantAccountingPolicies 25 false false R26.htm 996001 - Disclosure - Significant Accounting Policies (Tables) Sheet http://www.princetoncapitalcorp.com/role/SignificantAccountingPoliciesTables Significant Accounting Policies (Tables) Tables http://www.princetoncapitalcorp.com/role/SignificantAccountingPolicies 26 false false R27.htm 996002 - Disclosure - Net Increase (Decrease) in Net Assets Resulting From Operations Per Common Share (Tables) Sheet http://www.princetoncapitalcorp.com/role/NetIncreaseDecreaseinNetAssetsResultingFromOperationsPerCommonShareTables Net Increase (Decrease) in Net Assets Resulting From Operations Per Common Share (Tables) Tables http://www.princetoncapitalcorp.com/role/NetIncreaseDecreaseinNetAssetsResultingFromOperationsPerCommonShare 27 false false R28.htm 996003 - Disclosure - Fair Value of Investments (Tables) Sheet http://www.princetoncapitalcorp.com/role/FairValueofInvestmentsTables Fair Value of Investments (Tables) Tables http://www.princetoncapitalcorp.com/role/FairValueofInvestments 28 false false R29.htm 996004 - Disclosure - Related Party Transactions (Tables) Sheet http://www.princetoncapitalcorp.com/role/RelatedPartyTransactionsTables Related Party Transactions (Tables) Tables http://www.princetoncapitalcorp.com/role/RelatedPartyTransactions 29 false false R30.htm 996005 - Disclosure - Financial Highlights (Tables) Sheet http://www.princetoncapitalcorp.com/role/FinancialHighlightsTables Financial Highlights (Tables) Tables http://www.princetoncapitalcorp.com/role/FinancialHighlights 30 false false R31.htm 996006 - Disclosure - Unconsolidated Significant Subsidiaries (Tables) Sheet http://www.princetoncapitalcorp.com/role/UnconsolidatedSignificantSubsidiariesTables Unconsolidated Significant Subsidiaries (Tables) Tables http://www.princetoncapitalcorp.com/role/UnconsolidatedSignificantSubsidiaries 31 false false R32.htm 996007 - Disclosure - Segment Information (Tables) Sheet http://www.princetoncapitalcorp.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.princetoncapitalcorp.com/role/SegmentInformation 32 false false R33.htm 996008 - Disclosure - Schedule 12-14 (Tables) Sheet http://www.princetoncapitalcorp.com/role/Schedule1214Tables Schedule 12-14 (Tables) Tables http://www.princetoncapitalcorp.com/role/Schedule1214 33 false false R34.htm 996009 - Disclosure - Significant Accounting Policies (Details) Sheet http://www.princetoncapitalcorp.com/role/SignificantAccountingPoliciesDetails Significant Accounting Policies (Details) Details http://www.princetoncapitalcorp.com/role/SignificantAccountingPoliciesTables 34 false false R35.htm 996010 - Disclosure - Significant Accounting Policies - Schedule of Reconciliation of Cash and Restricted Cash Reporting Statements of Assets and Liabilities (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofReconciliationofCashandRestrictedCashReportingStatementsofAssetsandLiabilitiesTable Significant Accounting Policies - Schedule of Reconciliation of Cash and Restricted Cash Reporting Statements of Assets and Liabilities (Details) Details 35 false false R36.htm 996011 - Disclosure - Net Increase (Decrease) in Net Assets Resulting From Operations Per Common Share - Schedule of Basic and Diluted Net Decrease in Net Assets Resulting from Operations Per Common Share (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofBasicandDilutedNetDecreaseinNetAssetsResultingfromOperationsPerCommonShareTable Net Increase (Decrease) in Net Assets Resulting From Operations Per Common Share - Schedule of Basic and Diluted Net Decrease in Net Assets Resulting from Operations Per Common Share (Details) Details http://www.princetoncapitalcorp.com/role/NetIncreaseDecreaseinNetAssetsResultingFromOperationsPerCommonShareTables 36 false false R37.htm 996012 - Disclosure - Fair Value of Investments (Details) Sheet http://www.princetoncapitalcorp.com/role/FairValueofInvestmentsDetails Fair Value of Investments (Details) Details http://www.princetoncapitalcorp.com/role/FairValueofInvestmentsTables 37 false false R38.htm 996013 - Disclosure - Fair Value of Investments - Schedule of Company???s Assets Measured at Fair Value (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofCompanysAssetsMeasuredatFairValueTable Fair Value of Investments - Schedule of Company???s Assets Measured at Fair Value (Details) Details 38 false false R39.htm 996014 - Disclosure - Fair Value of Investments - Schedule of Changes in Level 3 Assets Measured at Fair Value (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofChangesinLevel3AssetsMeasuredatFairValueTable Fair Value of Investments - Schedule of Changes in Level 3 Assets Measured at Fair Value (Details) Details 39 false false R40.htm 996015 - Disclosure - Fair Value of Investments - Schedule of Quantitative Information Regarding Level 3 Fair Value Measurements (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofQuantitativeInformationRegardingLevel3FairValueMeasurementsTable Fair Value of Investments - Schedule of Quantitative Information Regarding Level 3 Fair Value Measurements (Details) Details 40 false false R41.htm 996016 - Disclosure - Related Party Transactions (Details) Sheet http://www.princetoncapitalcorp.com/role/RelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://www.princetoncapitalcorp.com/role/RelatedPartyTransactionsTables 41 false false R42.htm 996017 - Disclosure - Related Party Transactions - Schedule of Asset-Based Fee (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofAssetBasedFeeTable Related Party Transactions - Schedule of Asset-Based Fee (Details) Details 42 false false R43.htm 996018 - Disclosure - Financial Highlights - Schedule of Financial Highlights (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofFinancialHighlightsTable Financial Highlights - Schedule of Financial Highlights (Details) Details 43 false false R44.htm 996019 - Disclosure - Commitments and Contingencies (Details) Sheet http://www.princetoncapitalcorp.com/role/CommitmentsandContingenciesDetails Commitments and Contingencies (Details) Details http://www.princetoncapitalcorp.com/role/CommitmentsandContingencies 44 false false R45.htm 996020 - Disclosure - Unconsolidated Significant Subsidiaries (Details) Sheet http://www.princetoncapitalcorp.com/role/UnconsolidatedSignificantSubsidiariesDetails Unconsolidated Significant Subsidiaries (Details) Details http://www.princetoncapitalcorp.com/role/UnconsolidatedSignificantSubsidiariesTables 45 false false R46.htm 996021 - Disclosure - Unconsolidated Significant Subsidiaries - Schedule of Financial Information (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofFinancialInformationTable Unconsolidated Significant Subsidiaries - Schedule of Financial Information (Details) Details 46 false false R47.htm 996022 - Disclosure - Segment Information (Details) Sheet http://www.princetoncapitalcorp.com/role/SegmentInformationDetails Segment Information (Details) Details http://www.princetoncapitalcorp.com/role/SegmentInformationTables 47 false false R48.htm 996023 - Disclosure - Segment Information - Schedule of Statements of Operations (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofStatementsofOperationsTable Segment Information - Schedule of Statements of Operations (Details) Details 48 false false R49.htm 996024 - Disclosure - Segment Information - Schedule of Investments (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofInvestmentsTable Segment Information - Schedule of Investments (Details) Details 49 false false R50.htm 996025 - Disclosure - Schedule 12-14 - Schedule of Fair Value of Control and Affiliate Investments (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofFairValueofControlandAffiliateInvestmentsTable Schedule 12-14 - Schedule of Fair Value of Control and Affiliate Investments (Details) Details 50 false false R51.htm 996026 - Disclosure - Schedule 12-14 - Schedule of Fair Value of Control and Affiliate Investments (Parentheticals) (Details) Sheet http://www.princetoncapitalcorp.com/role/ScheduleofFairValueofControlandAffiliateInvestmentsTable_Parentheticals Schedule 12-14 - Schedule of Fair Value of Control and Affiliate Investments (Parentheticals) (Details) Details 51 false false All Reports Book All Reports ea0290452-10q_prince.htm piac-20260331.xsd piac-20260331_cal.xml piac-20260331_def.xml piac-20260331_lab.xml piac-20260331_pre.xml http://fasb.org/srt/2026 http://fasb.org/us-gaap/2026 http://xbrl.sec.gov/cef/2026 http://xbrl.sec.gov/dei/2026 http://xbrl.sec.gov/ecd/2026 true true