Other Accrued Expenses (Details) - USD ($)		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Advertising and marketing		$ 213,000	$ 191,000
Deferred revenue		1,431,000	1,434,000
Duties		1,127,000	1,318,000
Freight and handling fees		1,919,000	1,942,000
Product development		454,000	630,000
Product warranty claim costs		134,000	35,000
Professional fees		1,313,000	1,714,000
Property, plant and equipment		1,017,000	551,000
Sales taxes and VAT		2,715,000	3,170,000
Third-party commissions		853,000	585,000
Tooling	[1]	1,520,000	1,173,000
Unrealized loss on foreign currency exchange contracts		1,623,000	1,164,000
URC court order and settlement agreement		6,622,000	4,629,000
Utilities		331,000	278,000
Other		3,138,000	2,652,000
Total other accrued expenses		24,410,000	21,466,000
JAP Techno Solutions | Related Party Fees Paid
Related Party Transactions [Line Items]
Fees paid to related party		$ 0	$ 77,000	$ 39,000

[1] The tooling accrual balance relates to unearned revenue for tooling that will be sold to customers.