XML 74 R53.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Allowance for Doubtful Accounts (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Dec. 31, 2017
Allowance For Doubtful Accounts Details [Abstract]      
Balance at beginning of period $ 29,001 $ 14,001
Provisions for losses 15,000 30,000
Accounts charged-off (15,999)
Balance at end of period $ 29,001 $ 29,001 $ 14,001