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Long-term obligations - Additional Information (Details)
1 Months Ended 6 Months Ended
May 04, 2021
USD ($)
Dec. 31, 2018
employee
Jun. 30, 2021
USD ($)
May 21, 2021
Debt Instrument [Line Items]        
Number of former employees | employee   19    
Vendor Agreement [Member]        
Debt Instrument [Line Items]        
Cost of Goods and Services Sold     $ 400,000  
Paycheck Protection Program Loan [Member]        
Debt Instrument [Line Items]        
Proceeds from Issuance of Debt $ 579,700      
Debt Instrument, Interest Rate, Stated Percentage       100.00%