Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Oct. 31, 2013

Schedule of Carrying Amount of Goodwill Attributed to Operating Segment

The carrying amount of goodwill attributed to each operating segment was as follows:

(in thousands)	Water Resources		Inliner		Heavy Civil		Geoconstruction			Mineral Services		Energy Services		Other		Total
Balance February 1, 2013	$	—	$	8,915	$	—	$	14,646		$	—	$	—	$	—	$	23,561
Additions		—		—		—		—			—		—		—		—
Impairment of goodwill		—		—		—		(14,646	)		—		—		—		(14,646	)
Balance October 31, 2013	$	—	$	8,915	$	—	$	—		$	—	$	—	$	—	$	8,915

Schedule of Other Intangible Assets

Other intangible assets consist of the following:

	October 31, 2013							January 31, 2013
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Weighted Average Amortization Period in Years		Gross Carrying Amount		Accumulated Amortization			Weighted Average Amortization Period in Years
Amortizable intangible assets:
Tradenames	$	6,260	$	(3,101	)		14	$	8,008	$	(3,798	)		14
Customer/contract-related		—		—			—		3,340		(3,215	)		1
Patents		905		(492	)		15		3,012		(1,634	)		15
Software and licenses		2,747		(1,565	)		3		2,747		(919	)		3
Non-competition agreements		680		(340	)		6		680		(255	)		6
Other		966		(512	)		22		1,600		(726	)		21
Total intangible assets	$	11,558	$	(6,010	)			$	19,387	$	(10,547	)

Schedule of Amortization Expense

As of January 31, 2014, amortization will be expensed by fiscal year as follows:

(in thousands)
2014	$	1,653
2015		1,305
2016		1,000
2017		639
2018		549
Thereafter		1,657
Total	$	6,803