Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Details)

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Accrued Expenses (Details) - USD ($)
Sep. 30, 2016
Dec. 31, 2015
Schedule of Accrued Expenses [Line Items]    
Accrued compensation $ 534,538 $ 616,029
Warranty reserve 270,304 358,296
Other 279,913 265,768
Accrued Liabilities, Current $ 1,084,755 $ 1,240,093