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Derivative Instruments - Effect of Derivative Instruments on the Statement of Operations (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Interest Rate Swap | Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Interest expense $ (150,585) $ 105,114 $ (446,549) $ 105,114