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Property and Equipment (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Property and Equipment (Textual)        
Depreciation and amortization expense $ 601,357 $ 592,836 $ 1,060,601 $ 1,116,770