XML 73 R58.htm IDEA: XBRL DOCUMENT v3.21.1
Debt - June 2017 Convertible debt (Details) - USD ($)
1 Months Ended 12 Months Ended
Aug. 02, 2018
Jun. 29, 2017
May 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Debt          
Maximum aggregate redemption amount $ 500,000        
Loss on extinguishment of debt       $ 1,864,000 $ 4,941,000
June 2017 Convertible debt          
Debt          
Debt Instrument, Face Amount   $ 2,200,000      
Original issue discount   425,000      
Debt legal fee   30,000      
Proceeds from issuance of convertible debt   $ 1,700,000      
Interest rate (as a percent)   8.00%      
Loss on extinguishment of debt     $ 8,000