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Product Warranty Provisions (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Product Warranty Provisions [Abstract]    
Standard product warranty, coverage term 1 year  
Warranty accrual, beginning of the fiscal period $ 316,835 $ 364,548
Accrual adjustment for product warranty 55,262 171,384
Payments made (69,735) (219,097)
Warranty accrual, end of the fiscal period $ 302,362 $ 316,835