Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Oct. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Remaining Life at 10/31/2015		October 31, 2015							January 31, 2015
			Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
			(in thousands)							(in thousands)
Goodwill			$	5,552						$	5,594
Proprietary rights		7.1	$	6,139	$	(2,613	)	$	3,526	$	6,121	$	(2,240	)		3,881
Customer relationships		5.1		6,404		(2,169	)		4,235		6,613		(1,583	)		5,030
Patents		5.9		2,171		(710	)		1,461		2,243		(505	)		1,738
Trade name		6.1		276		(121	)		155		284		(102	)		182
Amortizable intangible assets			$	14,990	$	(5,613	)	$	9,377	$	15,261	$	(4,430	)	$	10,831

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

As of October 31, 2015, future estimated amortization expense related to amortizable intangible assets was estimated to be:

For fiscal years ending January 31 (in thousands):
2016	$	413
2017		1,611
2018		1,618
2019		1,275
2020		1,275
2021 and thereafter		3,185
Total	$	9,377