Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jul. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Remaining Life at 7/31/2015		July 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			$	5,579						$	5,594
Proprietary rights		7.3	$	6,232	$	(2,520	)	$	3,712	$	6,121	$	(2,240	)		3,881
Customer relationships		5.3		6,512		(1,978	)		4,534		6,613		(1,583	)		5,030
Patents		6.1		2,209		(644	)		1,565		2,243		(505	)		1,738
Trade name		6.4		279		(115	)		164		284		(102	)		182
Amortizable intangible assets			$	15,232	$	(5,257	)	$	9,975	$	15,261	$	(4,430	)	$	10,831

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

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

For fiscal years ending January 31 (in thousands):
2016	$	838
2017		1,637
2018		1,644
2019		1,299
2020		1,299
2021 and thereafter		3,258
Total	$	9,975