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Supplemental lease information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2019
Aug. 31, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]      
Right-of-use asset $ 10,109,154 $ 7,400,000
Short-term operating lease liability (included in Other current liabilities) 1,501,539  
Long-term operating lease liability $ 9,145,049  
Weighted average remaining term 9 years    
Weighted average discount rate 8.25%    
Cash paid for amounts included in the measurement of lease liabilities for operating lease $ 1,164,234    
Right-of-use assets obtained in exchange for lease obligation $ 11,171,471