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Debt (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Long-term debt, net $ 29,735,701 $ 29,647,611
Issuance costs [Member]    
Long-term debt, net (215,637) (287,506)
5.50% Senior Unsecured Notes [Member]    
Long-term debt, net 30,000,000 30,000,000
Discount [Member]    
Long-term debt, net $ (48,662) $ (64,883)