Annual report pursuant to Section 13 and 15(d)

Accounts Receivable (Details Textual)

v3.19.1
Accounts Receivable (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accounts Receivable (Textual)    
Bad debt (recovery) expense $ (552) $ 16,894