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Schedule of paycheck protection plan loan balances (Details)) (Parenthetical)
9 Months Ended
Sep. 30, 2021
USD ($)
Second Paycheck Protection Program [Member]  
Debt Instrument [Line Items]  
Debt Instrument, Maturity Date Jan. 16, 2026
Debt Instrument, Increase, Accrued Interest $ 473
Paycheck Protection Program [Member]  
Debt Instrument [Line Items]  
Debt Instrument, Maturity Date May 15, 2020
Debt Instrument, Periodic Payment $ 560