Annual report pursuant to Section 13 and 15(d)

G. ACCRUED LIABILITIES AND EXPENSES (Details)

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G. ACCRUED LIABILITIES AND EXPENSES (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accrued liabilities and expenses      
Accrued liabilities and expenses $ 342,841us-gaap_AccountsPayableAndOtherAccruedLiabilities $ 405,073us-gaap_AccountsPayableAndOtherAccruedLiabilities  
Accrued payroll and payroll taxes 345,589us-gaap_AccruedEmployeeBenefitsCurrent 430,871us-gaap_AccruedEmployeeBenefitsCurrent  
Accrued sales taxes, penalties, and interest 353,260us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued 1,080,482us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued  
Accrued interest 4,047us-gaap_InterestPayableCurrent 2,788us-gaap_InterestPayableCurrent  
Product warranties 44,288us-gaap_ProductWarrantyAccrual 77,943us-gaap_ProductWarrantyAccrual 69,743us-gaap_ProductWarrantyAccrual
Total accrued liabilities and expenses $ 1,090,025us-gaap_AccruedLiabilitiesCurrent $ 1,997,157us-gaap_AccruedLiabilitiesCurrent