Quarterly report pursuant to Section 13 or 15(d)

F. ACCRUED LIABILITIES AND EXPENSES (Details)

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F. ACCRUED LIABILITIES AND EXPENSES (Details) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2012
Accrued liabilities and expenses      
Accrued liabilities and expenses $ 489,847 $ 717,731  
Accrued payroll and payroll taxes 383,370 345,384  
Accrued sales taxes, penalties, and interest 1,101,163 1,188,136  
Accrued interest 3,344 21,053  
Product warranties 77,443 69,743 104,423
Total accrued liabilities and expenses $ 2,055,167 $ 2,342,047