Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2013

Payables and Accruals [Abstract]

Accrued liabilities

Accrued liabilities consist of the following (in thousands):

	March 31, 2013		December 31, 2012
Accrued payroll and related costs	$	3,573	$	3,237
Warranty reserve	752		419
Restructuring charges	1,778		149
Litigation charges	1,726		—
Accrued taxes	94		117
Other accrued liabilities	321		715
	$	8,244	$	4,637