Quarterly report pursuant to Section 13 or 15(d)

E. ACCRUED LIABILITIES AND EXPENSES (Details)

v3.19.3
E. ACCRUED LIABILITIES AND EXPENSES (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Dec. 31, 2017
Accrued liabilities and expenses      
Accrued payroll and payroll taxes $ 291,918 $ 241,253  
Accrued expenses 252,961 239,793  
Accrued professional 5,187 86,062  
Accrued sales taxes, penalties, and interest 42,357 43,400  
Product warranties 30,314 46,103 $ 59,982
Total accrued liabilities and expenses $ 622,737 $ 656,611