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Fair Value Measurements - Fair Value Measurements of Marketable Securities, by Major Class (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities $ 147,960 $ 1,310,000 $ 1,287,500
Level 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities 147,960 1,310,000  
Level 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities 0 0  
Level 3      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities 0 0  
Equity securities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities 147,960 1,310,000  
Equity securities | Level 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities   1,310,000  
Equity securities | Level 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities 0 0  
Equity securities | Level 3      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis      
Marketable securities $ 0 $ 0