Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Company's Level 3 Investments of Convertible preferred equity securities (Details)

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Fair Value Measurement - Company's Level 3 Investments of Convertible preferred equity securities (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2023
Fair Value Measurement    
Beginning balance $ 228,996,055 $ 217,707,354
Investment in 380,296 517,002
Ending Balance 229,042,795 229,042,795
Level 3 | Convertible preferred equity securities    
Fair Value Measurement    
Investment in   1,000,000
Ending Balance $ 1,000,000 $ 1,000,000