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Investment, Interest Rate, Paid in Kind Interest Rate, PIK Investment Company, Financial Highlights [Roll Forward] Number of debt investment portfolio industries Number Of Debt Investment Portfolio Industry Number of debt investment portfolio industry. Garrison Capital Equity Holdings II LLC Garrison Capital Equity Holdings II LLC Member Garrison Capital Equity Holdings II LLC. Cash paid for interest during the period Interest Paid, Excluding Capitalized Interest, Operating Activities Beverage, Food and Tobacco Beverage, Food and Tobacco [Member] Beverage, food and tobacco. Basic and Diluted: Net investment income Investment Company, Investment Income (Loss), Per Share Number of operating segment Number of Operating Segments Percentage of qualifying assets to total assets Percentage Of Qualifying Assets To Total Assets Percentage of qualifying assets to total assets Ratio of non-interest expenses to average net assets (annualized) Investment Company, Non-interest Expense Ratio Investment company, non-interest expense ratio. Fair Value Hierarchy and NAV [Axis] Option Indexed to Issuer's Equity, Type [Axis] Additional consideration funded by adviser Cash payment, (deemed capital contribution) Cash payment deemed capital contribution to shareholders Cash payment deemed capital contribution to shareholders. High Tech Industries High Tech Industries [Member] High Tech Industries. Equity Investment Interest Rate Paid In Kind Equity investment interest rate paid in kind. Interest Rate, PIK Level II Fair Value, Inputs, Level 2 [Member] Investment, Affiliated Issuer [Member] Investments in Affiliate Portfolio Companies Long-Term Debt, Type [Domain] Investments, Fair Value Disclosure [Abstract] Percentage of capital gains fee Percentage of capital gains fee. June 30, 2025 June Thirty Two Thousand Twenty Five [Member] June thirty two thousand twenty five. Transfers into Level III Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Average stated interest rate Long-Term Debt, Weighted Average Interest Rate, over Time Aggregate gross unrealized depreciation Investment, Tax Basis, Unrealized Loss Book/tax differences on CLO equity investments Investment Company Book or Tax Differences On Collateralized Loan Obligation Equity Investments Investment company book or tax differences on collateralized loan obligation equity investments. Range of Inputs Valuation Unobservable Input Range of inputs used in the valuation of level three investments. Delayed Draw Term Loan Delayed Draw Term Loan (DDTL) [Member] Investment, Identifier [Axis] Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operations: Stock repurchases, shares Stock Repurchased During Period, Shares Distribution payable date Dividends Payable, Date to be Paid Investment at fair value Fair Value Total Investments at Fair Value Fair Value, Ending Balance Fair Value, Beginning Balance Related Party Transaction [Line Items] Stockholders' Equity Equity [Text Block] Joint venture industry. Joint Venture Industry [Member] Joint Venture Repayments and sales of investments Proceeds from sales and redemptions of investments Proceeds from Sale of Securities, Operating Activities Sale of Stock [Domain] O 2025 Q2 Dividends [Member] O 2025 Q2 dividends. O 2025 Q2 Dividends Summary of Investments in Affiliates Investments in and Advances to Affiliates [Table Text Block] Declared date Dividends Payable, Date Declared Other Commitments [Line Items] Increase (Decrease) in Dividends Receivable (Increase) decrease in dividend receivable Debt instrument, issuance date Debt Instrument, Issuance Date Fair Value Measurement Inputs and Valuation Techniques [Line Items] Investment income from investments in joint ventures Investment Income From Investments in Joint Ventures Investment income from investments in joint ventures. Net accretion Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Net Accretion Fair value, measurement with unobservable inputs reconciliation, recurring basis, asset, net accretion. Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Cash consideration net of cash acquired from mergers Change in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Proceeds from offering of notes Proceeds from Issuance of Debt Franchise Group, Inc. Franchise Group, Inc. Franchise Group Inc [Member] Common stock, issued Common Stock, Shares, Issued Other assets Other Assets Other Assets, Total Transportation: Cargo Transportation Cargo [Member] Transportation cargo. Finance Finance [Member] Finance. Investment Income, Operating, after Expense and Tax Net investment income NET INVESTMENT INCOME Fair Value Measurement Inputs and Valuation Techniques [Table] Revenue Multiple Measurement Input, Revenue Multiple [Member] Distributions to Stockholders Net decrease in net assets resulting from stockholder distributions Distributions to Stockholders Net decrease in net assets resulting from stockholder distributions Investment Company Net Assets Increase Decrease Resulting From Stockholder Distributions Investment company net assets increase decrease resulting from stockholder distributions. Preferred Stock [Member] Preferred Stock and Units Stock Repurchase Program Stock Repurchase Program [Member] Stock repurchase program. Income Statement [Abstract] Royalty interest Royalty Interest Royalty interest. Derivatives Derivative [Member] Fair value of outstanding debt Debt Instrument, Fair Value Disclosure Debt Instrument, Fair Value Disclosure, Total Investments For Federal Income Tax Purpose Investments For Federal Income Tax Purpose [Member] Investments For Federal Income Tax Purpose [Member] Income Tax Examination [Line Items] Two Thousand Eighteen Two Secured Notes Class A-1R-R Notes [Member] Two thousand eighteen two secured notes class A-1R-R notes. 2018-2 Secured Notes Class A-1 R-R Notes Percentage of non-qualifying assets to total assets Non qualified assets percentage of total assets Non Qualified Assets Percentage of Total Assets Non qualified assets percentage of total assets. Number of board of directors Number of Board of Directors Number of board of directors. Schedule of Investments [Table] Measurement Input Recovery Percentage [Member] Measurement input recovery percentage. Recovery Percentage Average market value per par value Average Market Value Per Par Value Average market value per par value. Maturity date Line of Credit Facility, Expiration Date Date of record Dividends Payable, Date of Record Payment-in-kind income: Payment-in-kind income [Abstract] Payment-in-kind income. Other book/tax differences Investment company other book or tax differences. Investment Company Other Book or Tax Differences Deferred financing costs Amortization of debt issuance costs Amortization of Debt Issuance Costs Interest income: Interest and Dividend Income, Operating [Abstract] Subsequent Event [Line Items] Fiscal 2020 Fiscal Two Thousand Twenty [Member] Fiscal two thousand twenty. Net decrease in net assets per share from operations - basic Net increase (decrease) in net assets resulting from operations Basic Earnings Per Share, Basic Investment, Unaffiliated Issuer [Member] Investments in Non-Control, Non-Affiliate Portfolio Companies Non-controlled/Non-affiliated Investments Debt offering costs Debt Issuance Costs, Gross Net Income (Loss), Including Portion Attributable to Noncontrolling Interest [Abstract] Operations: Dentive LLC One. Dentive LLC One [Member] Dentive, LLC (Revolver) EXPENSES Operating Expenses [Abstract] Other Liabilities, Total Other Liabilities Due to affiliates Expenses Investment Advisory Expenses [Policy Text Block] Investment advisory expenses. Luminii LLC Luminii LLC Member Luminii LLC. Ratio of total expenses to average net assets (annualized) Investment Company, Expense Ratio, after Fee Waiver and Incentive Fee Deduction Investments, Debt and Equity Securities [Abstract] Non controlling member interest rate Non Controlling Member Interest Rate Non controlling member interest rate. Period of stock repurchase program Share Repurchase Program, Period in Force Advisory Agreement Advisory Agreement [Member] Advisory agreement. Exercise price Derivative, Price Risk Option Strike Price Amortized Carrying Value Cost Long-term debt Long-Term Debt, Total Unrealized Gain (Loss) on Derivatives Unrealized gain(loss) Net change in unrealized appreciation (depreciation) on Derivatives Total distributable (loss) earnings Retained Earnings (Accumulated Deficit) Retained Earnings (Accumulated Deficit), Total Subordinated Debt Subordinated Debt [Member] Segment Reporting [Abstract] Related party transaction, terms of terminate administration agreement Related party transaction, terms of terminate administration agreement. Distributions to stockholders Payments of Ordinary Dividends, Common Stock Investment Type [Axis] Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities GLPRF LLC GLPRF LLC Member GLPRF LLC. Debt Instrument [Line Items] Committed increase to aggregate principal amount not to exceed subject to satisfaction of certian conditions Committed increase to aggregate principal amount not to exceed subject to satisfaction of certain conditions Committed increase to aggregate principal amount not to exceed subject to satisfaction of certain conditions. Investments Investment, Policy [Policy Text Block] OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Aggregate gross unrealized appreciation Investment, Tax Basis, Unrealized Gain Common stock, par value Common Stock, Par or Stated Value Per Share Healthcare & Pharmaceuticals Healthcare & Pharmaceuticals [Member] Healthcare & Pharmaceuticals. Measurement Input Type [Domain] Realized gain (loss) from extinguishment of debt Investment Company, Realized Gains (Losses) from Extinguishment of Debt Investment company, realized gains (losses) from extinguishment of debt. Second Lien Or Senior Secured Debt [Member] Second Lien/Senior Secured Debt. Second Lien/Senior Secured Debt Put Option Put Option [Member] Metals & Mining Metals & Mining [Member] Metals & Mining. Epilog Partners SPV III LLC Care Connectors Medical Group. Epilog Partners SPV III LLC Care Connectors Medical Group [Member] Epilog Partners SPV III, LLC (Care Connectors Medical Group) Statement of Cash Flows [Abstract] Average EBITDA Multiple Measurement Input, Average EBITDA Multiple [Member] Measurement Input, Average EBITDA Multiple [Member] Net decrease in net assets resulting from distributions Net decrease in net assets resulting from distributions Investment Company, Distribution to Shareholders, Per Share Catamaran CLO 2014-1 Ltd. Catamaran CLO 2014-1 Ltd. [Member] Catamaran CLO 2014-1 Ltd. Debt Investment Portfolio At Fair Value Debt investment portfolio at fair value. Debt investment portfolio at fair value Accordion Partners LLC One [Member] Accordion Partners LLC one. Accordion Partners LLC (Revolver) Equity Components [Axis] Schedule of Basic and Diluted Net Increase (Decrease) In Net assets Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Related Party Transaction [Table] Valuation Approach and Technique [Axis] Subsequent Event Type [Axis] Increase (decrease) in payable for unsettled trades Increase (Decrease) in Accounts Payable, Trade First Lien/Senior Secured Debt First Lien Senior Secured Debt [Member] First lien senior secured debt. PMP OPCO, LLC (Princeton Medspa Partners, LLC) P M P O P C O, L L C (Princeton Medspa Partners, L L C) [Member] PMP OPCO, LLC (Princeton Medspa Partners, LLC). Total commitments under the revolving credit facility Line of Credit Facility, Maximum Borrowing Capacity Income Approach Valuation, Income Approach [Member] Measurement Input EBITDA [Member] Measurement input EBITDA. EBITDA Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Services: Consumer Services Consumer [Member] Services Consumer. VBC Spine Opco LLC (DxTx Pain and Spine LLC) V B C Spine Opco L L C (Dx Tx Pain and Spine L L C) [Member] V B C Spine Opco L L C (Dx Tx Pain and Spine L L C). Unrealized Gain (Loss), Investment and Derivative, Operating, before Tax Unrealized appreciation on investments Net change in unrealized gain (loss) on investments Net change in unrealized appreciation (depreciation) on investments Notes Payable Notes Payable, Total 4.875% Notes Due 2026 (net of deferred financing costs and original issue discount of $644 and $1,017, respectively) Non-controlled Affiliated Investments Non Controlled Affiliated Investments [Member] Non controlled affiliated investments. Debt Instrument, Name [Domain] Capital in excess of par value Additional Paid in Capital, Common Stock Bradshaw International Parent Corp. Member Bradshaw International Parent Corp. Bradshaw International Parent Corp. Net decrease in net assets resulting from operations - basic and diluted Net increase (decrease) in net assets resulting from operations Reinvestment of distributions Reinvestment of distributions Reinvestment of distributions. Number of debt investments on non-accrual status Number of Debt Investments On Non-Accrual Status Number of debt investments on non-accrual status. Related party transaction, terms of terminate advisory agreement. Related party transaction, terms of terminate advisory agreement Schedule of Debt Obligations Schedule of Debt [Table Text Block] Non-recurring fee income received. Non-Recurring Fee Income Received Non-recurring fee income received Equity Component [Domain] Statistical Measurement [Domain] Asset Manager Subsidiaries Asset Manager Subsidiaries [Member] Asset manager subsidiaries. Floor Floor rate Investment, Interest Rate, Floor Interest Rate Investment Interest Rate Reconciliation of Net Increase (Decrease) in Net Assets Resulting From Operations to Taxable Income Schedule of Net Increase Decrease in Net Assets Resulting From Operations to Taxable Income [Table Text Block] Schedule of net increase decrease in net assets resulting from operations to taxable income. Interest expense Interest and amortization of debt issuance costs Interest Expense, Debt Interest Expense, Debt, Total Net increase (decrease) in net assets resulting from operations Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Fair value of investments Debt Securities, Held-to-Maturity, Fair Value Debt Securities, Held-to-Maturity, Fair Value, Total Measurement Input Required Rate of Return [Member] Measurement input required rate of return. Required Rate of Return Debt discount Debt Instrument, Unamortized Discount Debt Instrument, Unamortized Discount, Total Debt instruments, net of original issue discount Schedule of Derivative Investments Schedule of Derivative Instruments [Table Text Block] Net increase (decrease) in net assets resulting from capital share transactions Investment Company, Capital Share Transaction, Increase (Decrease) Summary of Portfolio by Security and Investment Schedule of Investment Portfolio by Security Type [Table Text Block] Schedule of investment portfolio by security type. PMP OPCO LLC Princeton Medspa Partners LLC One. PMP OPCO LLC Princeton Medspa Partners LLC One [Member] PMP OPCO, LLC (Princeton Medspa Partners, LLC) (Revolver) BetaNXT, Inc. Beta NXT Inc [Member] BetaNXT, Inc. Debt Instrument redemption, amount Debt Instrument Redemption Amount Debt instrument redemption amount. Net Asset Value Per Share, Ending Balance Net asset value, at beginning of period Net asset value per common share Net Asset Value Per Common Share Aggregate fair value of investments in joint venture Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure Industry Sector [Axis] Measurement Input, Share Price [Member] Stock Price Common Stock, Shares, Outstanding, Ending Balance Common stock, outstanding Number of shares Shares outstanding at end of period Common Stock, Shares, Outstanding, Beginning Balance Measurement Input Recent Transaction Bid [Member] Measurement input recent transaction bid. Recent Transaction Bid Initial principal amount Line of Credit Facility, Current Borrowing Capacity Time Horizon Time horizon. Time Horizon [Member] Dividend Income, Operating, Total Dividend Income, Operating Total dividend income Investment Company, Financial Highlights [Abstract] Time to Exit (Years) Measurement Input Time To Exit [Member] Measurement Input time to exit. Repayments of Lines of Credit Repayment of Revolving Credit Facilities Weighted Average Weighted Average [Member] Interest Income, Operating, Paid in Kind Total payment-in-kind income Amortization of original issue discount Amortization of original issue discount. Number of debt investment portfolio companies Number Of Debt Investment Portfolio Companies Number of debt investment portfolio companies. Business acquisition, number of shares issued Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Underlying Asset Class [Domain] Fiscal Two Thousand Twenty Four [Member] Fiscal two thousand twenty four. Fiscal 2024 Debt instrument, redemption price, percentage Debt Instrument, Redemption Price, Percentage Accounting Standards Update [Domain] First lien debt. First Lien Debt [Member] First Lien Debt Morae Global Corporation (Revolver) Morae Global Corporation One [Member] Morae Global Corporation One. Related Party Transaction [Domain] Total Cash and Restricted cash CASH AND RESTRICTED CASH, END OF PERIOD CASH AND RESTRICTED CASH, BEGINNING OF PERIOD Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents CASH AND RESTRICTED CASH, END OF PERIOD Investment Company [Abstract] Percentage of debt securities contains floor rates Percentage Of Debt Securities Contains Floor rates Percentage of debt securities contains floor rates. Related Party Transactions Related Party Transactions Disclosure [Text Block] Statistical Measurement [Axis] March Thirty One Two Thousand Twenty Five [Member] March thirty one two thousand twenty five. March 31, 2025 Noninterest Expense Directors Fees Directors' expense Unfunded Portfolio Company Commitments, Par Value Unfunded commitment to investee Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount Administration Agreement Administration Agreement [Member] Administration agreement. Convertible debt unfunded amount withdrawn. Convertible Debt Unfunded Amount Withdrawn Drew Amount Related and Nonrelated Parties [Domain] Fiscal 2019 Fiscal Two Thousand Nineteen [Member] Fiscal two thousand nineteen. Book/tax differences related to mergers and partnership investments Investment Company Book or Tax Differences Related To Mergers and Partnership Investments Investment company book or tax differences related to mergers and partnership investments. Ending balance Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Accrued interest payable Interest Payable Recovery Rate Measurement Input, Recovery Rate [Member] Measurement input, recovery rate. Taxable income before deductions for distributions Taxable Income before Deductions for Distributions Taxable income before deductions for distributions. Ownership [Domain] GARS Acquisition GARS Acquisition [Member] GARS Acquisition. Investment in number of units Par/ Shares Investment Owned, Balance, Shares Total assets Total Assets Assets Net capital loss carryforward Investment Company, Distributable Earnings (Loss), Accumulated Capital Loss Carryforward Accounts payable, accrued expenses and other liabilities Accounts Payable and Other Accrued Liabilities HDC HW Intermediate Holdings LLC [Member] HDC HW Intermediate Holdings LLC. HDC/HW Intermediate Holdings, LLC Schedule of Long-Term Debt Instruments [Table] Increase (decrease) in due to affiliates Increase (Decrease) in Due to Affiliates, Current Deferred tax liabilities Deferred Tax Liabilities, Gross Deferred Tax Liabilities, Gross, Total Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] . Total expenses Investment Income, Investment Expense Dividends [Axis] Investment, Affiliated Issuer, Noncontrolled [Member] Non-controlled Affiliated Investments Management and incentive fees payable Management And Incentive Fee Payable Management and incentive fee payable. Weighted average maturity on debt outstanding Weighted average maturity on debt outstanding. Anthem Sports & Entertainment Inc. (2025 Delayed Draw Term Loan) Anthem Sports And Entertainment Inc Two [Member] Anthem Sports And Entertainment Inc Two. Merger Related Shares Issued Per LRFC Shares Converted in to Right to Receive Merger related shares issued per LRFC shares converted in to right to receive. Merger related shares issued per LRFC shares converted in to right to receive JMP Credit Advisors CLO IV Ltd. JMP Credit Advisors CLO IV Ltd. [Member] JMP Credit Advisors CLO IV Ltd. Total Amount Outstanding Exclusive of Treasury Securities Aggregate principal amount Debt Instrument, Face Amount Call Option Call Option [Member] Per share market value at end of period Per share market value at beginning of period 4.875% Notes Due 2026 4.875% Notes due 2026 Four Point Eight Seven Five Notes due 2026 [Member] 4.875% Notes due 2026. Private Placement Private Placement [Member] Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) Dryden 30 Senior Loan Fund. Dryden 30 Senior Loan Fund [Member] Dryden 30 Senior Loan Fund F3C Joint venture ownership percentage F3C Joint Venture ownership Percentage F3C Joint venture ownership percentage. Joint Venture Joint Ventures Joint Ventures [Member] Joint venture. Banking, Finance, Insurance & Real Estate Banking Finance Insurance and Real Estate [Member] Banking Finance Insurance and Real Estate [Member] Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Transfers In (Out) of Affiliates Investments In And Advances To Affiliates At Fair Value Transfers In Out of Affiliates Investments In And Advances To Affiliates At Fair Value Transfers In Out of Affiliates Sales/Paydowns/Return of Capital Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales Paydowns Return of Capital Fair value measurement with unobservable inputs reconciliation recurring basis asset sales paydowns return of capital. Gross Investment Income, Operating Investment income Total investment income Open Option Contract, Identifier [Axis] Accordion Partners LLC Accordion Partners LLC Member Accordion Partners LLC. F3C Joint Venture F3C Joint Venture [Member] F3C Joint Venture. Extinguishment of Debt Extinguishment of Debt [Policy Text Block] Extinguishment of debt. Fiscal 2015 Fiscal Two Thousand Fifteen [Member] Fiscal two thousand fifteen. Enterprise Value Valuation Technique [Member] Enterprise Value Valuation Technique [Member] Enterprise Value Net Realized Gains (Losses) from Investment Transactions and Extinguishment of Debt Net realized gains (losses) from investment transactions and extinguishment of debt. Net realized gains (losses) from investment transactions and extinguishment of debt Accounting Standards Update [Axis] Net increase (decrease) in net assets relating to stock-based transactions Investment Company, Net Increase (Decrease) in Net Assets Relating to Stock-based Transactions Investment company, net Increase (Decrease) in net assets relating to stock-based transactions. Portfolio turnover rate Investment Company, Portfolio Turnover Rate Investment company, portfolio turnover rate. Taxable income before deductions for distributions per weighted average basic and diluted shares for the period Investment Company, Investment Income (Loss) from Operations, Per Share Investment Company, Investment Income (Loss) from Operations, Per Share, Total Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents, at Carrying Value, Total Derivatives Derivatives [Member] Derivatives. Dividends [Domain] Schedule of Information about Senior Securities Schedule of Information about Senior Securities [Table text block] Schedule of information about senior securities. Date of acquisition closing Business Acquisition, Effective Date of Acquisition Containers, Packaging and Glass Containers, Packaging and Glass [Member] Containers, packaging and glass. Underlying Asset Class [Axis] Construction & Building Construction and Building [Member] Construction and Building [Member] Subsequent Event Type [Domain] Derivative Instruments, Gain (Loss) [Line Items] Tax (provision) benefit on realized and unrealized gains (losses) on investments Tax Provision (Benefit) On Realized And Unrealized Gains (Losses) On Investments Tax provision (benefit) on realized and unrealized gains (losses) on investments. Tax (benefit) provision on realized and unrealized gains (losses) on investments Provision (benefit) for income taxes Machinery (Non-Agrclt/Constr/Electr) Machinery [Member] Machinery. Percentage of investments in non-accrual status at fair value Percentage of Investments In Non Accrual Status at Fair Value Percentage of investments in non accrual status at fair value. Termination date of stock repurchase program Share Repurchase Program, Expiration Date 2018-2 Secured Notes Two Thousand Eighteen Two Secured Notes [Member] Two thousand eighteen two secured notes. O 2025 Q3 Dividends [Member] O 2025 Q3 dividends. O 2025 Q3 Dividends Share value in cash Business Acquisition, Share Price Anthem Sports And Entertainment Inc One [Member] Anthem Sports And Entertainment Inc one. Anthem Sports & Entertainment Inc. (Revolver) Industry Sector [Domain] Sale of Stock [Axis] Percentage of minimum commitments utilization requirement Percentage of Minimum Commitments Utilization Requirement Percentage of minimum commitments utilization requirement. Investments [Domain] Dentive, LLC. Dentive, L L C [Member] Dentive, LLC Stock repurchase program Payments for Repurchase of Common Stock Administrative services expense Administrative Fees Expense Distributable Taxable Income Income Tax Disclosure [Text Block] Application Software Application Software Member Application software. Retail Retail Industry [Member] Retail Industry. REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS Gain (Loss) on Investments [Abstract] Unrealized Gain (Loss), Investment and Derivative, Operating, after Tax Net change in unrealized appreciation (depreciation) on investments Ownership [Axis] Investment, Issuer Affiliation [Axis] Base Distribution Base Distribution [Member] Base distribution. Other Commitments [Table] Stock repurchases, value Stock repurchases Stock repurchases Stock Repurchased During Period, Value Credit Facility [Domain] JMP Credit Advisors CLO V Ltd. JMP Credit Advisors CLO V Ltd. [Member] JMP Credit Advisors CLO V Ltd. Total payment-in-kind income Paid In Kind Income Paid in kind income. Payment-in-kind income Debt instrument, frequency of periodic payment Debt Instrument, Frequency of Periodic Payment IDC Infusion Services. IDC Infusion Services [Member] IDC Infusion Services Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Additional consideration funded by adviser Business Acquisition Additional Consideration Funded Per Share Business acquisition additional consideration funded per share Stockholders' Equity Note [Abstract] interest and financing expenses Interest and financing expenses. Total interest and financing expenses IT Consulting & Other Services I T Consulting and Other Services [Member] IT consulting & other services. Debt Instrument redemption, amount Debt Conversion, Converted Instrument, Amount Capital share transactions: Investment Company, Capital Share Transactions, Stock Issued [Abstract] Incentive fee, description Incentive Fee, Description Segment reporting, CODM, profit (loss) measure, how used, description Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Management fees Management Fee Expense Increase (Decrease) in Management and Incentive Fees Payable Increase (decrease) in management and incentive fees payable Percentage of investment portfolio valuation Percentage of Investment Portfolio Valuation Percentage of investment portfolio valuation. Interactive Media & Services Interactive Media and Services [Member] Interactive media & services. PMA Parent Holdings LLC (Revolver) PMA Parent Holdings LLC [Member] PMA Parent Holdings LLC. Ending balance Beginning balance Total Equity Net assets at end of period Total Net Assets Equity, Attributable to Parent Summary of Investment Holdings [Line Items] Investment Holdings [Line Items] Schedule of Investments [Abstract] Controlled Affiliated Investments Investments in Controlled Afilliated Portfolio Companies Controlled Investments Controlled Affiliated Investments Controlled Affiliated Investments [Member] Controlled affiliated investments. Cash consideration to GARS / HCAP shareholders Cash purchase price Payments to Acquire Businesses, Gross Related Party Transactions [Abstract] Asset Management Company Asset Management Company [Member] Asset management company. Option Indexed to Issuer's Equity, Type [Domain] Media: Broadcasting & Subscription Media: Broadcasting & Subscription [member] Media: Broadcasting & Subscription. Common stock issued under dividend reinvestment plan Stock Issued During Period, Shares, Dividend Reinvestment Plan Investment Income Investment Income [Policy Text Block] Investment income. Average stated interest rate Weighted average stated interest rate on debt outstanding Debt, Weighted Average Interest Rate Percentage Ownership Investments rate Percentage of voting interest Share Repurchase Program [Axis] Related party transaction, terms of removal of adviser Related party transaction, terms of removal of adviser. Discount Rate Measurement Input, Discount Rate [Member] Measurement Input Type [Axis] GARS Common Stock GARS common stock [Member] GARS common stock. Affiliated Entity [Member] Affiliated Entity Collateralized Mortgage Obligations [Member] Collateralized Loan Obligations Dividends Receivable Dividend receivable Measurement Input Average Revenue Multiple [Member] Measurement input average revenue multiple. Average Revenue Multiple Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Second Lien/Senior Secured Debt [Member] Second lien/senior secured debt. Second Lien/Senior Secured Debt Excise tax percentage Excise Tax Percentage Excise tax percentage. Summary of Outstanding Commitments to Fund Investments in Current Portfolio Companies Unfunded Commitments [Table Text Block] Unfunded commitments. Newbury Franklin Industrials LLC [ Member] Newbury Franklin Industrials LLC. Newbury Franklin Industrials, LLC Measurement Input, Price Volatility [Member] Volatility Net realized and unrealized appreciation (depreciation) on investments, net of taxes. Net Realized And Unrealized Appreciation (Depreciation) On Investments, Net Of Taxes Net realized and unrealized appreciation (depreciation) on investments, net of taxes Tax (provision) benefit on realized and unrealized gains (losses) on investments Investment Company, Tax (Provision) Benefit on Realized and Unrealized Gains (Losses) on Investments Investment company, tax (provision) benefit on realized and unrealized gains (losses) on investments. CLO Fund Securities CLO Fund Securities Industry [Member] CLO Fund Securities Industry. Diversified Financial Services Diversified Financial Services Member Diversified Financial Services. Business Acquisition, Acquiree [Domain] Asset coverage per unit measure per dollar Asset Coverage per Unit Measure Per Dollar Asset Coverage per Unit measure per dollar. Total realized gain (loss) included in earnings Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Realized Gain Loss Fair value measurement with unobservable inputs reconciliation recurring basis asset realized gain loss. Realized gain (loss) included in earnings Subsequent Event [Member] Subsequent Event Maximum Maximum [Member] Investment Holdings [Table] Total Liabilities and Net Assets Total Liabilities and Net Assets Total Liabilities and Equity Liabilities and Equity Repayment of 2018-2 Secured Notes Repayments of Secured Debt Net realized (gain) loss on extinguishment of debt Net realized gain (loss) on extinguishment of debt Net realized gain (loss) from extinguishment of debt Gain (Loss) on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt, Total Consumer goods: Durable Consumer Goods Durable [Member] Consumer goods durable. Supplemental Information and non-cash activities: Supplemental Cash Flow Information [Abstract] Net decrease in net assets per share from operations - diluted Diluted Earnings Per Share, Diluted Earnings Per Share, Diluted, Total Debt Instrument redemption, amount Debt Instrument Redemption Amounts Debt instrument redemption amounts. Total Liabilities Liabilities Debt and Equity Securities, Realized Gain (Loss), Total Debt and Equity Securities, Realized Gain (Loss) Realized Gain/(Loss) Net realized gain (loss) from investments Fair Value Hierarchy and NAV [Domain] Fiscal 2018 Fiscal Two Thousand Eighteen [Member] Fiscal two thousand eighteen. Net realized (gain) loss on investment transactions Net realized losses Net realized losses Net realized gains (losses) from investment transactions Net realized gain (loss) on investments Net realized (gain) loss on investments Investment, Issuer Affiliation [Domain] Net Accretion Investments in and Advances to Affiliates, at Fair Value, Gross Additions Distribution Type [Axis] Middle West Spirits, LLC - Revolver Middle West Spirits, LLC [Member] Middle West Spirits, LLC. Interest Income, Operating, Total Interest Income, Operating Interest and Fee Income Interest Income, Operating, Paid in Cash Total interest income Investment, Variable Interest Rate, Type [Extensible Enumeration] Purchase of investments Purchases of investments Payments for Purchase of Securities, Operating Activities Cash Distribution Cash Distribution [Member] Asset Manager Affiliates Asset Manager Affiliates [Member] Asset manager affiliates. Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Notional amounts Notional amount Derivative, Notional Amount Asset coverage ratio Investment Company, Asset Coverage Ratio Investment company, asset coverage ratio. Investment, Interest Rate, Paid in Cash Interest Rate, Cash Netwrix Corporation One. Netwrix Corporation One [Member] Netwrix Corporation (Revolver) Accretive effect of common stock repurchases Accretive effect of common stock repurchases Accretive effect of common stock repurchases. Fair value of borrowings, but not carried Line of Credit Facility Fair Value of Amount Line of credit facility fair value of amount. Related Party Transaction [Axis] Related and Nonrelated Parties [Axis] 2018-2 Subordinated Notes Two Thousand Eighteen Two Subordinated Notes [Member] Two thousand eighteen two subordinated notes. Non-call Period Non-call Period [Member] Non-call period. Change in unrealized gain (loss) included in earnings Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Unrealized Gain Loss Fair value measurement with unobservable inputs reconciliation recurring basis asset unrealized gain loss. Capital Equipment Capital Equipment [Member] Capital equipment. Riddell Inc Riddell Inc Member Riddell Inc. Net repayments and sales of investments Net repayments and sales of investments. Anthem Sports & Entertainment Inc. Anthem Sports And Entertainment Inc Member Anthem Sports & Entertainment Inc. Services: Business Services: Business [Member] Services: Business. Number of reporting segment Number of Reportable Segments Earnings (Losses) Per Share Earnings Per Share [Text Block] Stated Maturity Debt instrument, due date Maturity Weighted average common stock outstanding - basic Weighted Average Shares of Common Stock Outstanding - Basic Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic, Total Date of acquisition agreement Business Acquisition, Date of Acquisition Agreement Distribution Type [Domain] NAV Fair Value Measured at Net Asset Value Per Share [Member] Debt instrument converted amount Convertible Debt Unfunded Amount Convertible debt unfunded amount. Common stock, authorized Common Stock, Shares Authorized Share Repurchase Program [Domain] Recent Transaction Bid / Required Rate of Return [Member] Recent Transaction Bid / Required Rate of Return. Recent Transaction Bid / Required Rate of Return CCMG Buyer, LLC (Care Connectors Medical Group) C C M G Buyer, L L C (Care Connectors Medical Group) [Member] CCMG Buyer, LLC (Care Connectors Medical Group). Cash and Cash Equivalents [Abstract] Amounts per consolidated statements of assets and liabilities: Increase (decrease) in accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Debt Disclosure [Abstract] Riskonnect Parent LLC Riskonnect Parent LLC Member Riskonnect Parent LLC. Derivative Instruments, Gain (Loss) [Table] Realized Gain (Loss), Investment and Derivative, Operating, before Tax Net realized gain (loss) on investments Number of investee companies where investments held Number of Investee Companies Where Investments Held Number of investee companies where investments held. Increase (decrease) in accrued interest payable Increase (Decrease) in Interest Payable, Net Collaborative Arrangement and Arrangement Other than Collaborative [Table] Debt securities Debt Securities [Member] Percentage of pre-incentive fee net investment income Percentage of pre-incentive fee net investment income. Accounting Policies [Abstract] Purchases/ (sales) of or Advances/ (Distributions) Investments in and Advances to Affiliates at Fair Value Additions and Reductions Investments in and advances to affiliates at fair value additions and reductions. Investments in CLO Fund Securities [Table Text Block] Investments in CLO Fund Securities [Table Text Block] Summary of Investments in CLO Fund Securities CLO par value Principal amount of borrowings Long-Term Line of Credit, Total Great Lakes Portman Ridge Funding LLC Revolving Credit Facility (net of deferred financing costs of $1,073 and $1,322, respectively) Book Value of Equity Book Value of Equity [Member] Book value of equity. Telecommunications Telecommunications [Member] Telecommunications. Income Tax Disclosure [Abstract] NET ASSETS Equity, Attributable to Parent [Abstract] Schedule of Investments [Line Items] Renewed Stock Repurchase Program Renewed Stock Repurchase Program [Member] Renewed stock repurchase program. Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Asset Coverage per Unit Asset Coverage Per Unit Asset coverage per unit. Statement [Table] Segment Reporting Segment Reporting, Policy [Policy Text Block] Stock issued under dividend reinvestment plan Reinvested Dividends Stock Issued During Period, Value, Dividend Reinvestment Plan Subsequent Event [Table] Interest Rate Equity Investment Interest Rate Equity investment interest rate. Summary of Information Relating to Investments Measured at Fair Value for Company has Used Unobservable Inputs to Determine Fair Value Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Entity File Number Segment Reporting Disclosure [Text Block] Segment Reporting CHANGE IN CASH AND RESTRICTED CASH Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net Increase (Decrease) In Net Assets Resulting from Operations per Common Share: Earnings Per Share [Abstract] Interest receivable Interest Receivable Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Joint venture Joint Venture [Member] Joint Venture [Member] Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Statement of Financial Position [Abstract] Company incorporated date Committed seven-day bridge advance in aggregate principal amount subject to satisfaction of certain conditions Committed seven-day bridge advance in aggregate principal amount subject to satisfaction of certain conditions. Percentage of average daily unborrowed portion of financing commitments Percentage of Average Daily Unborrowed Portion of Financing Commitments Percentage of average daily unborrowed portion of financing commitments. Percentage of outstanding voting securities owned Percentage Of Outstanding Voting Securities Owned Percentage of outstanding voting securities owned. Schedule of Valuation Techniques and Significant Inputs of Level III Investments Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Applicable margin Effective interest Debt Instrument, Interest Rate, Effective Percentage Ratio/Supplemental Data: Investment Company, Financial Ratios [Abstract] (Increase) decrease in interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Chemicals, Plastics and Rubber [Member] Chemicals, Plastics and Rubber [Member] Chemicals, Plastics and Rubber Assets [Abstract] Income Tax, Examination [Table] Enterprise Market Value Valuation Technique [Member] Enterprise market value valuation technique. Enterprise Market Value Tax provision (benefit) on realized and unrealized gains (losses) on investments Gain (Loss), Investment and Derivative, Operating, Tax Expense (Benefit) Gain (Loss), Investment and Derivative, Operating, Tax Expense (Benefit), Total Aggregate amortized cost of debt investments on non-accrual status Aggregate Amortized Cost of Debt Investments on Non-accrual Status Aggregate amortized cost of debt investments on non-accrual status. Percentage of cash dividend on total distribution Percentage of Cash Dividend on Distribution Percentage of cash dividend on distribution Percentage of hurdle rate Percentage of hurdle rate. Long-Term Debt, Type [Axis] Investments at fair value, amortized cost Aggregate cost of investments Cost/Amortized Cost Subsequent Events [Abstract] Fortis Payment Systems, LLC Fortis Payment Systems L L C Member Fortis Payment Systems, LLC. Other general and administrative expenses Other General and Administrative Expense TA/WEG Holdings, LLC (Revolver) Ta Weg Holdings Llc One. Ta Weg Holdings Llc One [Member] Business Acquisition [Axis] Prepayment Rate Measurement Input, Prepayment Rate [Member] Ratio of interest expense to average net assets (annualized) Investment Company, Interest Expense Ratio Investment company, interest expense ratio. Proceeds from offering of notes Proceeds from Debt, Net of Issuance Costs Equity Securities Equity Equity Securities [Member] Discount amortized over the remaining term Debt Instrument, Unamortized Discount, Noncurrent Organization, Consolidation and Presentation of Financial Statements [Abstract] Distributions declared Distributions of ordinary income Investment Company, Dividend Distribution Investment Company, Dividend Distribution, Total Maturity Investment Maturity Date Energy: Oil & Gas [Member] Energy: Oil & Gas. Energy: Oil & Gas OHAI Acquisition [Member] OHAI acquisition. OHAI Transaction Incentive fees Incentive Fee Expense Performance-based incentive fees Incentive Fee Expense, Total Fair Value Measurement Inputs and Valuation Techniques [Abstract] Declared cash distribution of per share of common stock Common Stock, Dividends, Per Share, Cash Paid Dividend income: Dividend Income [Abstract] Dividend Income. Commitments and Contingencies Disclosure [Abstract] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] HCAP Acquisition HCAP Acquisition [Member] HCAP Acquisition [Member] Unamortized debt offering costs Deferred financing costs, net Debt Issuance Costs, Net Debt Issuance Costs, Net, Total Professional fees Professional Fees Derivative Assets (Liabilities), at Fair Value, Net Derivative Assets (Liabilities), at Fair Value, Net, Total Derivative assets (liabilities) Transfers out of Level III Transfers out of Level III Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Percentage of cumulative realized capital gains Percentage of cumulative realized capital gains. Non Controlled Affiliated and Controlled Investments [Member] Non controlled affiliated and controlled investments. Non-controlled Affiliated and Controlled Investments Total net asset value return Investment Company, Total Return Fiscal 2021 Fiscal Two Thousand Twenty One [Member] Fiscal two thousand twenty one. Interest rate Interest Rate Debt Instrument, Interest Rate, Stated Percentage Total Distributable (Loss) Earnings Retained Earnings [Member] Accounting Standard Update 2011-04. Accounting Standard Update 2011 04 [Member] ASC 820 Stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount (Increase) decrease in other assets Increase (Decrease) in Other Operating Assets Increase (Decrease) in Other Operating Assets, Total Number of shares derivative instruments. Number of Shares Derivative Instruments Number of shares Transportation: Consumer Transportation: Consumer [Member] Transportation: Consumer. Summary of Fair Value of Investments by Fair Value Hierarchy Levels Fair Value of Investments by Fair Value Hierarchy Levels [Table Text Block] Fair value of investments by fair value hierarchy levels. Valuation Approach and Technique [Domain] Series A-Great Lakes Funding II LLC Series A-Great Lakes Funding II LLC [Member] Series A-Great Lakes Funding II LLC. Derivative Asset, Not Subject to Master Netting Arrangement Value Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net, Total Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Deferred financing costs and original issue discount, net Debt instruments, net of deferred financing costs and original issue discount Minimum Minimum [Member] Net change in unrealized (appreciation) depreciation on investments Net change in unrealized (appreciation) depreciation from investments Net change in unrealized appreciation (depreciation) on investments Unrealized gain(loss) Net change in unrealized appreciation (depreciation) on investments Common Stock Common Stock [Member] Common Stock and Membership Units Morae Global Corporation [Member] Morae Global Corporation member. Morae Global Corporation (Term Loan A) Restricted cash Restricted Cash Restricted Cash, Total Summary of Components of Stockholders' Equity Schedule of Stockholders Equity [Table Text Block] Second Lien Debt Second Lien Debt [Member] Second lien debt. Capital in Excess of Par Value Additional Paid-in Capital [Member] Ratio of net investment income to average net assets (annualized) Investment Company, Investment Income (Loss) Ratio Total market return Investment Company Market Return Investment Company Market Return Directors selected by Freedom 3 Opportunities Board Of Directors Selected By Freedom 3 Opportunities Board of directors selected by freedom 3 opportunities. Foreign Currency Translations Foreign Currency Transactions and Translations Policy [Policy Text Block] Fiscal 2017 Fiscal Two Thousand Seventeen [Member] Fiscal two thousand seventeen. Collateralized Loan Obligations CLO Facility Collateralized Loan Obligations Fees and other income. Fees and other income Total fees and other income Tax (provision) benefit on realized and unrealized gains (losses) on investments Investment Income, Operating, Tax Expense (Benefit) Tax (provision) benefit on realized and unrealized gains (losses) on investments 2018-2 Secured Notes Class B-R Notes Two thousand eighteen two secured notes class Class B-R Notes [Member] Two thousand eighteen two secured notes class Class B-R notes. Fiscal 2016 Fiscal Two Thousand Sixteen [Member] Fiscal two thousand sixteen. Catamaran CLO 2018-1 Ltd. Catamaran CLO 2018-1 Ltd [Member] Catamaran CLO 2018-1 Ltd. Net change in unrealized appreciation (depreciation) on: Net change in unrealized appreciation (depreciation) [Abstract] Net change in unrealized appreciation (depreciation). Net change in unrealized appreciation (depreciation) on investments Investment Company, Net Change in Unrealized (Depreciation) Appreciation on Investments Investment company, net change in unrealized (depreciation) appreciation on investments. VBC Spine Opco LLC DxTx Pain And Spine LLC One. VBC Spine Opco LLC DxTx Pain And Spine LLC One [Member] VBC Spine Opco LLC (DxTx Pain and Spine LLC) (Revolver) Book Value Multiple [Member] Book value multiple. Book Value Multiple Debt instrument amended agreement, description Debt Instrument Amended Agreement Description Description of debt amended features under terms of the debt agreement. Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Investment, Basis Spread, Variable Rate Reference Rate and Spread Common stock issued by the Company Common Stock, Value, Issued Common stock, par value $0.01 per share, 20,000,000 common shares authorized; 9,970,461 issued, and 9,207,851 outstanding at June 30, 2025, and 9,960,785 issued, and 9,198,175 outstanding at December 31, 2024 Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Schedule of Interest Expense, Amortization of Original Issue Discount, Deferred Financing Costs, Average Outstanding Balance, and Average Stated Interest Rate Schedule of interest expense, deferred financing costs, average outstanding balance, and average stated interest rate table text block Schedule of interest expense, deferred financing costs, average outstanding balance, and average stated interest rate. ATP Oil & Gas Corporation ATP Oil and Gas Corporation [Member] ATP Oil and Gas Corporation. Valuation, Market Approach [Member] Market COMMITMENTS AND CONTINGENCIES (NOTE 8) Commitments and Contingencies Net Investment Income Per Common Share: Net Investment Income Per Common Share [Abstract] Net investment income per common share. Net realized gain (loss) on investment Realized Gain (Loss), Investment and Derivative, Operating, after Tax Two Thousand and Twenty Five Stock Repurchase Program [Member] 2025 Stock Repurchase Program. 2025 Stock Repurchase Program Directors selected by company Board of Directors Selected by Company Board of directors selected by company. Weighted average common stock outstanding - diluted Weighted Average Shares of Common Stock Outstanding - Diluted Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Significant Accounting Policies Significant Accounting Policies [Text Block] Management fee, description Management Fee, Description Asset coverage requirement percentage Asset Coverage Requirement Percentage Asset coverage requirement percentage. Par/ Shares Aggregate principal amount of loans held Principal Net realized gain (loss) Realized Gain Loss on Investments and Debt Extinguishment Realized gain (loss) on investments and debt extinguishment. Net realized losses Net realized (gain) loss Net realized (gain) loss Aggregate fair value of debt investments on non-accrual status Aggregate Fair Value of Debt Investments on Non-accrual Status Aggregate fair value of debt investments on non-accrual status. Freedom 3 and Great Lakes Joint venture Freedom 3 and Great Lakes joint venture. Freedom 3 and Great Lakes Joint Venture [Member] Borrowings Debt Disclosure [Text Block] 7.375% Notes Due 2019 Seven Point Three Seven Five Percent Notes Due Two Thousand Nineteen [Member] Seven point three seven five percent notes due two thousand nineteen. Fair value of investments Investments, Fair Value Disclosure Investments, Fair Value Disclosure, Total Fiscal 2023 Fiscal Two Thousand Twenty Three [Member] Fiscal two thousand twenty three. Probability of Default Measurement Input, Default Rate [Member] Shareholder Distributions Shareholder Distributions [Policy Text Block] Shareholder distributions. Credit Facility [Axis] Revolving Credit Facilities Great Lakes Portman Ridge Funding LLC Revolving Credit Facility Revolving Credit Facility [Member] Hotel, Gaming & Leisure Hotel, Gaming & Leisure [Member] Hotel, Gaming & Leisure. INVESTMENT INCOME Investment Income, Net [Abstract] Net accretion of investments Net accretion of investments Accretion (Amortization) of Discounts and Premiums, Investments 6.125% Notes Due 2022 Six Point One Two Five Notes Due 2022 [Member] Six point one two five notes due 2022. FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Percentage of investments in non-accrual status at amortized cost Percentage of Investments In Non Accrual Status At Amortized Cost Percentage of investments in non accrual status at amortized cost Liabilities [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Stockholder distributions: Investment Company, Distribution to Shareholders [Abstract] Fiscal two thousand twenty two. Fiscal Two Thousand Twenty Two [Member] Fiscal 2022 Number of shares Derivative, Number of Instruments Held Derivative, Number of Instruments Held, Total Aerospace and Defense Aerospace and Defense [Member] Aerospace and Defense [Member] Consumer Services Consumer Services [Member] Consumer services. Unsecured Debt Unsecured Debt [Member] Fees and other income. Fees And Other Income [Abstract] Fees and other income: Net unrealized depreciation Investment, Tax Basis, Unrealized Gain (Loss) Tax Basis of Investments, Unrealized Appreciation (Depreciation), Net, Total PhyNet Dermatology LLC Phy Net Dermatology LLC [Member] PhyNet Dermatology LLC. Average outstanding balance Long-Term Debt, Average Amount Outstanding Healthcare, Education and Childcare Healthcare, Education and Childcare [Member] Healthcare, education and childcare. Fair Value Percentage of Total Portfolio Investment Owned Percent Investment owned, percent of total portfolio fair value Investment owned, percent of total portfolio fair value. Net realized gains (losses) from investment transactions: Net realized gains (losses) from investment transactions [Abstract] Net realized gains (losses) from investment transactions. Debt Issuance Costs Debt Issuance Costs [Policy Text Block] Debt issuance costs. Common Stock and Membership Units [Member] Common stock and membership units. Common Stock and Membership Units Level III Fair Value, Inputs, Level 3 [Member] Subsequent Events Subsequent Events [Text Block] Energy: Electricity Energy Electricity [Member] Energy electricity. Net realized gain (loss) from investments Investment Company Realized Gain Loss On Investments Investment company realized gain loss on investments. Average Debt Value Per Company Average debt value per company. Average par balance per entity Chief Executive Officer Chief Financial Officer And Chief Investment [Member] Chief Executive Officer Chief Financial Officer And Chief Investment.