Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jul. 31, 2012

Goodwill and Other Intangible Assets [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Remaining Life at 7/31/12		July 31, 2012							January 31, 2012
			Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
			(in thousands)							(in thousands)
Goodwill			$	4,320						$	4,320
Proprietary rights		7.9	$	3,491	$	(1,473	)	$	2,018	$	3,532	$	(1,347	)	$	2,185
Customer relationships		5.6		2,397		(724	)		1,673		2,387		(572	)		1,815
Patents		5.6		722		(218	)		504		719		(172	)		547
Trade name		5.6		197		(60	)		137		196		(47	)		149
Amortizable intangible assets			$	6,807	$	(2,475	)	$	4,332	$	6,834	$	(2,138	)	$	4,696

Amortization expense related to amortizable intangible assets

For fiscal years ending January 31 (in thousands):
2013	$	338
2014		669
2015		669
2016		669
2017		669
2018 and thereafter		1,318
Total	$	4,332