Accrued Liabilities (Tables)

12 Months Ended

Jan. 31, 2013

Schedule of Accrued Liabilities

Accrued liabilities at January 31, 2013 and 2012 consisted of the following:

	As of January 31,
	2013		2012
	(in thousands)
Accrued employee compensation	$	8,599	$	4,642
Refundable exercised unvested options		210		470
Accrued warranty		352		404
Accrued rebates		272		233
Accrued product development costs		2,875		679
Other accrued liabilities		2,111		1,503
Total accrued liabilities	$	14,419	$	7,931