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Short-term Investments and Fair Value Measurements - Narrative (Details)
 3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
position
shares
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
position
shares
Sep. 30, 2021
USD ($)
Debt Securities, Available-for-sale [Line Items]        
Realized gain on investments $ 1,000 $ 22,000 $ 21,000 $ 380,000
Realized loss on investments 945,000 58,000 1,300,000 262,000
Unrealized loss 1,800,000 455,000 10,600,000 1,200,000
Net unrealized loss on available-for-sale equity securities $ (1,833,284) $ (455,299) $ (10,641,026) $ (1,166,764)
Number of securities in a gross unrealized loss position | position 33   33  
Number of securities in a gross unrealized loss position for more than twelve months | position 16   16  
Unrealized loss     $ 5,800,000  
Level 1 | Common stock        
Debt Securities, Available-for-sale [Line Items]        
Investment owned (in shares) | shares 597,808   597,808