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Fair Value Measurements, Quantitative Information About Level 3 and Investments in Certain Entities Carried at Fair Value (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Certain Level 3 Instruments [Abstract]    
Financial assets, fair value $ 91,453,734 $ 97,402,409
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]    
Equity securities 141,927,670 150,053,686 [1]
Unfunded commitments 7,154,915 7,779,867
Growth Equity Redeemable [Member]    
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]    
Unfunded commitments $ 0 $ 0
Redemption frequency Quarterly  
Redemption notice period 45 days 45 days
Growth Equity Non-Redeemable [Member]    
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]    
Unfunded commitments $ 7,154,915 $ 7,779,867
Net Asset Value [Member]    
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]    
Equity securities 83,409,214 89,434,766
Net Asset Value [Member] | Growth Equity Redeemable [Member]    
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]    
Equity securities 36,743,972 43,724,562
Net Asset Value [Member] | Growth Equity Non-Redeemable [Member]    
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]    
Equity securities 46,665,242 45,710,204
Net Asset Value [Member] | Common Stock [Member]    
Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Certain Level 3 Instruments [Abstract]    
Financial assets, fair value 83,409,214 89,434,766
Pricing Model [Member] | Common Stock [Member]    
Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Certain Level 3 Instruments [Abstract]    
Financial assets, fair value $ 8,044,520 $ 7,967,643
[1] Balance sheet audited at December 31, 2022.