Other Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Payables and Accruals [Abstract]
Advertising and marketing	$ 321		$ 238
Duties	904		797
Freight	1,250		1,374
Product development	846		614
Product warranty claim costs	216		41
Professional fees	1,761		1,757
Sales taxes and VAT	1,622		1,637
Third-party commissions	942		511
Tooling	447	[1]	758	[1]
Unrealized loss on foreign currency exchange futures contracts	1,194		2
Utilities	378		311
Other	3,346		3,189
Total other accrued expenses	$ 13,227		$ 11,229

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