Annual report pursuant to Section 13 and 15(d)

Accounts Receivable (Details Textual)

v3.22.1
Accounts Receivable (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Accounts Receivable (Textual)    
Bad debt expense $ 99,911 $ 992