Annual report pursuant to Section 13 and 15(d)

F. ACCRUED LIABILITIES AND EXPENSES (Details)

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F. ACCRUED LIABILITIES AND EXPENSES (Details) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Accrued liabilities and expenses      
Accrued liabilities and expenses $ 218,629 $ 186,762  
Accrued payroll and payroll taxes 279,199 289,575  
Accrued sales taxes, penalties, and interest 227,415 189,697  
Accrued interest 253 291  
Product warranties 49,149 28,702 $ 23,500
Total accrued liabilities and expenses $ 774,645 $ 695,027