Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Oct. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average		October 31, 2014							January 31, 2014
	Remaining Life at 10/31/2014		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
			(in thousands)							(in thousands)
Goodwill			$	5,661						$	4,320
Proprietary rights		8.1	$	6,365	$	(2,177	)	$	4,188	$	3,577	$	(1,900	)		1,677
Customer relationships		6.0		7,105		(1,520	)		5,585		2,159		(1,057	)		1,102
Patents		6.8		2,404		(476	)		1,928		650		(318	)		332
Trade name		7.0		311		(107	)		204		177		(87	)		90
Amortizable intangible assets			$	16,185	$	(4,280	)	$	11,905	$	6,563	$	(3,362	)	$	3,201

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

As of October 31, 2014, future estimated amortization expense related to amortizable intangible assets was estimated to be:

For fiscal years ending January 31 (in thousands):
2015	$	449
2016		1,795
2017		1,753
2018		1,732
2019		1,394
2020 and thereafter		4,782
Total	$	11,905