Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable - Activity in the allowance for doubtful accounts (Details)

v3.10.0.1
Accounts Receivable - Activity in the allowance for doubtful accounts (Details) - USD ($)
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Balance at December 31, 2017 $ (178,399)  
Write offs 73,097  
Provisions 98,677 $ (226,557)
Recovery 162,360  
Balance at September 30, 2018 $ (6,625)