Quarterly report pursuant to Section 13 or 15(d)

Financial instruments (Details)

v3.20.2
Financial instruments (Details)
 6 Months Ended
Aug. 04, 2020
USD ($)
May 19, 2020
USD ($)
Jun. 30, 2020
USD ($)
item
Financial Instruments      
Cash, insured amount     $ 900,000
Accounts Payable, Trade, Current     $ 500,000
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Change In Basis Points | item     100
Credit Concentration Risk      
Financial Instruments      
Cash, uninsured amount     $ 12,200,000
Minimum      
Financial Instruments      
Financial Liabilities Trade Terms Period     30 days
Maximum      
Financial Instruments      
Financial Liabilities Trade Terms Period     60 days
Maximum | At Market Issuance Sales Agreement      
Financial Instruments      
Proceeds from shares issued   $ 10,000,000  
Subsequent Event [Member]      
Financial Instruments      
Proceeds from shares issued $ 4,680,000