Other Accrued Expenses (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Advertising and marketing		$ 280	$ 213
Deferred revenue		1,444	1,431
Duties		1,047	1,127
Freight and handling fees		1,935	1,919
Product development		502	454
Product warranty claim costs		298	134	$ 35	$ 35
Professional fees		1,320	1,313
Property, plant, and equipment		738	1,017
Sales taxes and VAT		2,914	2,715
Short-term contingent consideration		2,500	0
Third-party commissions		667	853
Tooling	[1]	1,605	1,520
Unrealized loss on foreign currency exchange contracts		667	1,623
URC court order and settlement agreement		0	6,622
Utilities		409	331
Other		3,968	3,138
Total other accrued expenses		$ 20,294	$ 24,410

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