v3.26.1
Note 6 - Fair Value - Schedule of Valuation Techniques and Assumptions (Details) (Parentheticals) - Fair Value, Inputs, Level 3 [Member]
Jun. 30, 2026
Advanced Materials Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Revenue Multiple [Member] | Minimum [Member]  
Investment Company, Investment Owned, Measurement Input 0.8 [1]
Advanced Materials Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Revenue Multiple [Member] | Maximum [Member]  
Investment Company, Investment Owned, Measurement Input 1 [1],[2]
Advanced Materials Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Revenue Multiple [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 0.9 [3]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Maturity [Member]  
Investment Company, Investment Owned, Measurement Input 5 [1],[2]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Maturity [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 5 [3]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member]  
Investment Company, Investment Owned, Measurement Input 50 [1],[2]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 50 [3]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member]  
Investment Company, Investment Owned, Measurement Input 4.19 [1],[2]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 4.19 [3]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount for Lack of Marketability [Member]  
Investment Company, Investment Owned, Measurement Input 22.8 [1],[2]
Advanced Materials Sector [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount for Lack of Marketability [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 22.8 [3]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Revenue Multiple [Member] | Minimum [Member]  
Investment Company, Investment Owned, Measurement Input 0.3 [1]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Revenue Multiple [Member] | Maximum [Member]  
Investment Company, Investment Owned, Measurement Input 0.5 [1],[2]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Revenue Multiple [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 0.4 [3]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Price Volatility [Member]  
Investment Company, Investment Owned, Measurement Input 55 [1],[2]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Price Volatility [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 55 [3]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Risk Free Interest Rate [Member]  
Investment Company, Investment Owned, Measurement Input 4.15 [1],[2]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Risk Free Interest Rate [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 4.15 [3]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Going Concern Probability [Member]  
Investment Company, Investment Owned, Measurement Input 5 [1],[2]
Medical Devices Sector [Member] | Valuation, Market Approach [Member] | Measurement Input, Going Concern Probability [Member] | Weighted Average [Member]  
Investment Company, Investment Owned, Measurement Input 5 [3]
[1] An increase in the input would result in an increase in the security’s valuation; a decrease in the input would result in a decrease in the security’s valuation.
[2] An increase in the inputs would result in a decrease in the securities valuation; a decrease in the input would result in an increase in the security's valuation.
[3] Weighted average is calculated by weighting the significant unobservable input by the relative fair value of each investment in the category