XML 53 R42.htm IDEA: XBRL DOCUMENT v3.21.2
Note 5 - Accounts Receivable - Summary of Accounts Receivable (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 30, 2020
Dec. 31, 2020
Accounts receivable - current $ 1,605,024   $ 1,605,024   $ 561,834  
Foreign currency loss 0 $ 0 (50,000) $ 0 0  
Allowance for doubtful accounts (13,785)   (13,785)   (13,785)  
Accounts receivable, net of allowances for doubtful accounts $ 1,541,239   $ 1,541,239   $ 548,049 $ 548,049