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Product Warranties (Policies)	6 Months Ended
Product Warranties (Policies)	Jun. 30, 2017
Product Warranties Disclosures [Abstract]
Standard Product Warranty, Policy [Policy Text Block]	The Company provides product warranties with varying terms and durations for the majority of its products. The Company estimates its warranty reserve by considering historical and projected warranty claims, historical and projected cost-per-claim, and knowledge of specific product issues that are outside its typical experience. The Company records warranty expense in cost of sales in the condensed consolidated statements of operations. Product warranty claims not expected to occur within one year are recorded in the long-term portion of the warranty reserve in the condensed consolidated balance sheets.