Inventories (Tables)

12 Months Ended

Jan. 31, 2013

Inventories [Abstract]

Schedule of Inventories

	As of January 31,
	2013			2012
Raw materials	$	3,103		$	2,789
Finished goods		3,531			3,711
Work in progress		627			1,109
Cost of inventories		7,261			7,609
Less allowance for obsolescence		(1,073	)		(901	)
Net inventories	$	6,188		$	6,708