Property and Equipment, Net (Tables)

6 Months Ended

Jul. 31, 2013

Property Plant And Equipment [Abstract]

Schedule of Property and Equipment

Property and equipment at July 31, 2013 and January 31, 2013 consisted of the following:

	As of			As of
	July 31, 2013			January 31, 2013
	(in thousands)
Computer equipment and software	$	4,188		$	2,810
Machinery and equipment		2,063			2,050
Furniture and fixtures		412			397
Leasehold improvements		1,195			642
Construction in progress		—			827
		7,858			6,726
Less: accumulated depreciation and amortization		(4,639	)		(4,190	)
Total property and equipment, net	$	3,219		$	2,536