Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable - Additional Information (Details)

v3.19.3
Accounts Receivable - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Accounts Receivable Net Current [Abstract]        
Provision for bad debt expense $ 2,150 $ 3,638 $ 495 $ 90,793