Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2012

Payables and Accruals [Abstract]

Accrued liabilities

Accrued liabilities consisted of the following (in thousands):

December 31:	2012		2011
Payroll and related	$	7,653	$	8,302
Professional fees	1,916		1,345
Non-income taxes	84		1,185
Product warranty	1,006		1,126
Deferred rent	380		431
Derivative litigation costs	1,262		—
Derivative litigation settlement	1,573		—
Other	2,778		2,492
Total	$	16,652	$	14,881