Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016		Dec. 31, 2015		Mar. 31, 2015	Dec. 31, 2014
Other Liabilities Disclosure [Abstract]
Accrued warranty, current, see Note 1	$ 241		$ 330
Accrued taxes, net	1,605		1,135
Accrued sales returns	2,185	[1]	4,179	[1]	$ 5,941	$ 7,651
Other accrued liabilities	3,966		2,921
Total other accrued liabilities	$ 7,997		$ 8,565

[1] The activity in the accrued sales returns liability account was as follows: