v3.26.1
Financial Highlights (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Per Share Data:        
Net asset value, beginning of period $ 8.9 $ 9.07 $ 9.07  
Net investment income - basic (in dollars per share) [1] 0.16 0.18    
Net realized gain (loss) on investments and change in unrealized depreciation on investments [1],[2] (0.12) (0.05)    
Net increase in net assets resulting from operations 0.04 0.13    
Effect of equity capital activity        
Distributions to stockholders from net investment income [1] (0.16) (0.18)    
Distributions to stockholders from return of capital 0 [1] 0 [1] (0) $ (0.02)
Net asset value at end of period $ 8.78 $ 9.02 $ 8.9 $ 9.07
Total return [3],[4] 0.43% 1.42%    
Shares of common stock outstanding at end of period 47,020,471 47,020,457 47,020,468  
Consolidated Statement of Assets and Liabilities Data:        
Net assets at end of period $ 412,800,093 $ 424,112,802 $ 418,555,348 $ 426,642,405
Average net assets [5] $ 416,530,321 $ 425,799,204    
Ratio/Supplemental Data:        
Ratio of expenses before incentive fees to average net assets - annualized [6] 1.40% 1.39%    
Ratio of gross expenses after incentive fees to average net assets - annualized [6] 2.59% 2.67%    
Ratio of net expenses to average net assets - annualized [7] 1.42% 1.48%    
Ratio of net investment income to average net assets - annualized 7.58% 8.05%    
Portfolio turnover [3] 3.46% 0.58%    
[1] Based on weighted average basic per share of Common Stock data.
[2] The per share amount varies from the net realized and unrealized gain (loss) for the period because of the timing of sales of fund shares and the per share amount of realized and unrealized gains and losses at such time.
[3] Not annualized.
[4] Total return is based on the change in net asset value during the respective periods. Total return also takes into account dividends and distributions, if any, reinvested in accordance with the Company's dividend reinvestment plan.
[5] Average net assets are computed using the average balance of net assets at the end of each month of the reporting period.
[6] Ratio of gross expenses before and after incentive fees to average net assets is computed using expenses before waivers from the Adviser and Administrator.
[7] Ratio of net expenses to average net assets is computed using total expenses net of waivers from the Adviser and Administrator.