Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Oct. 31, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Remaining Life at 10/31/2013		October 31, 2013							January 31, 2013
			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		6.7	$	3,537	$	(1,814	)	$	1,723	$	3,503	$	(1,625	)		1,878
Customer relationships		4.3		2,302		(1,055	)		1,247		2,402		(876	)		1,526
Patents		4.3		693		(318	)		375		724		(264	)		460
Trade name		4.3		189		(87	)		102		197		(72	)		125
Amortizable intangible assets			$	6,721	$	(3,274	)	$	3,447	$	6,826	$	(2,837	)	$	3,989

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

As of October 31, 2013, future estimated amortization expense related to amortizable intangible assets was estimated to be:

For fiscal years ending January 31 (in thousands):
2014	$	163
2015		655
2016		655
2017		655
2018		655
2019 and thereafter		664
Total	$	3,447