v3.26.1
Note 6 - Fair Value - Schedule of Valuation Techniques and Assumptions (Details)
Pure in Thousands
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Investments, fair value $ 148,635 $ 225,436
Fair Value, Inputs, Level 3 [Member]    
Investments, fair value 144,732  
Advanced Materials Sector [Member] | Fair Value, Inputs, Level 3 [Member]    
Investments, fair value 100,000  
Automotive Sector [Member] | Fair Value, Inputs, Level 3 [Member]    
Investments, fair value $ 0  
Automotive Sector [Member] | Fair Value, Inputs, Level 3 [Member] | Valuation Technique, Liquidation Value [Member] | Measurement input, Market Value of Invested Capital [Member] | Weighted Average [Member]    
Investment Company, Investment Owned, Measurement Input [1] 0  
Medical Devices Sector [Member] | Fair Value, Inputs, Level 3 [Member]    
Investments, fair value $ 0  
Semiconductor Equipment Sector [Member] | Fair Value, Inputs, Level 3 [Member]    
Investments, fair value $ 0  
Semiconductor Equipment Sector [Member] | Fair Value, Inputs, Level 3 [Member] | Valuation Technique, Recent Transaction [Member] | Measurement Input, Equity Proceeds from Private Transaction [Member] | Weighted Average [Member]    
Investment Company, Investment Owned, Measurement Input [1] 0  
[1] Weighted average is calculated by weighting the significant unobservable input by the relative fair value of each investment in the category