Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Payables and Accruals [Abstract]

Accrued liabilities

Accrued liabilities consisted of the following (in thousands):

December 31:	2013		2012
Payroll and related	$	9,537	$	7,653
Professional fees	1,400		1,916
Non-income taxes	3,223		84
Product warranty	578		1,006
Deferred rent	278		380
Derivative litigation costs	—		1,262
Derivative litigation settlement	1,241		1,573
Other	3,206		2,778
Total	$	19,463	$	16,652