v3.25.4
Investments - Composition of the Company's Investment Portfolio by Geographic Region, at Amortized Cost and Fair Value (with Corresponding Percentage of Total Portfolio Investments) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Investments    
Investment owned, cost $ 373,465,000 [1] $ 495,797,000 [2]
Fair Value $ 334,855,000 [1],[3] $ 457,048,000 [2],[4]
Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 100.00% 100.00%
Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 100.00% 100.00%
Midwest    
Investments    
Investment owned, cost $ 120,079,000 $ 178,051,000
Fair Value $ 101,072,000 $ 152,880,000
Midwest | Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 32.20% 35.90%
Midwest | Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 30.20% 33.40%
Northeast    
Investments    
Investment owned, cost $ 99,187,000 $ 103,354,000
Fair Value $ 89,532,000 $ 94,766,000
Northeast | Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 26.60% 20.80%
Northeast | Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 26.70% 20.70%
Northwest    
Investments    
Investment owned, cost $ 0 $ 3,928,000
Fair Value $ 0 $ 4,030,000
Northwest | Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 0.00% 0.80%
Northwest | Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 0.00% 0.90%
Southeast    
Investments    
Investment owned, cost $ 73,300,000 $ 116,087,000
Fair Value $ 68,243,000 $ 111,115,000
Southeast | Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 19.60% 23.50%
Southeast | Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 20.40% 24.40%
Southwest    
Investments    
Investment owned, cost $ 11,605,000 $ 12,622,000
Fair Value $ 11,804,000 $ 13,186,000
Southwest | Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 3.00% 2.50%
Southwest | Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 3.50% 2.90%
West    
Investments    
Investment owned, cost $ 69,294,000 $ 81,755,000
Fair Value $ 63,280,000 $ 79,683,000
West | Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 18.60% 16.50%
West | Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 18.90% 17.40%
International    
Investments    
Investment owned, cost $ 0 $ 0
Fair Value 924,000 1,388,000
International | One International Portfolio Investment    
Investments    
Investment owned, cost $ 0 $ 0
International | Investment Owned, At Cost | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 0.00% 0.00%
International | Investment Owned, At Fair Value | Geographic Concentration Risk    
Investments    
Concentration risk, percentage 0.30% 0.30%
[1] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940 (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.
[2] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940 (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.
[3] Because there is no readily available market value for these investments, the fair value of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements).
[4] Because there is no readily available market value for these investments, the fair value of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements)