Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Accounts Receivable - Activity in the allowance for doubtful accounts (Details) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Balance at December 31, 2017 $ (178,399)  
Write offs 16,399  
Provisions (18,235) $ (60,703)
Balance at March 31, 2018 $ (180,235)