Other Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Components of other accrued expenses
Advertising and marketing	$ 478		$ 501
Duties	819		584
Freight	1,458		1,666
Product development	381		569
Product warranty claim costs	279		404
Professional fees	806		1,234
Sales and Value Added Tax Payable Current	671		1,979
Third-party commissions	677		337
Tooling	638	[1]	221	[1]
Utilities	356		316
Other	3,195		2,833
Total other accrued expenses	$ 9,758		$ 10,644

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