Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable (Details Textual)

v3.20.2
Accounts Receivable (Details Textual) - USD ($)
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Accounts Receivable (Textual)    
Bad debt (recovery) expense $ 0 $ 0