XML 47 R35.htm IDEA: XBRL DOCUMENT v3.19.1
Product Warranty Provisions (Tables)
12 Months Ended
Dec. 31, 2018
Product Warranties Disclosures [Abstract]  
Schedule of Accrued Warranty

Accrued warranty, which is included in other accrued liabilities, consists of the following:

 

    December 31, 2018     December 31, 2017  
Warranty accrual, beginning of the fiscal period   $ 164,365     $ 222,845  
Accrual adjustment for product warranty     34,253       32,679  
Payments made     (49,154 )     (91,159 )
Warranty accrual, end of the fiscal period   $ 149,464     $ 164,365