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Product Warranty Provisions (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Product Warranty Provisions [Abstract]    
Standard product warranty coverage term 1 year  
Warranty accrual, beginning of the fiscal period $ 222,845 $ 316,835
Accrual adjustment for product warranty (19,612) 103,743
Payments made (10,169) (197,733)
Warranty accrual, end of the fiscal period $ 193,064 $ 222,845