Operating Segments (Tables)

6 Months Ended

Jul. 31, 2016

Segment Reporting [Abstract]

Schedule of Financial Information for Segments

Financial information for our segments is presented below. Unallocated corporate expenses primarily consist of general and administrative functions performed on a company-wide basis and benefiting all segments. These costs include expenses related to accounting, financial reporting, internal audit, treasury, legal, tax compliance, executive management and board of directors.

													Unallocated
Three Months Ended July 31, 2016	Water						Heavy			Mineral			Corporate			Other Items/
(in thousands)	Resources			Inliner			Civil			Services			Expenses			Eliminations			Total
Revenues	$	56,471		$	52,976		$	35,414		$	14,318		$	—		$	(130	)	$	159,049
(Loss) income  from continuing operations before income taxes	$	(2,238	)	$	6,808		$	103		$	1,634		$	(8,149	)	$	(4,209	)	$	(6,051	)
Interest expense		—			—			—			—			—			4,209			4,209
Depreciation expense and amortization		3,015			1,262			428			1,801			448			—			6,954
Non-cash equity-based compensation		105			43			37			45			615			—			845
Equity in (earnings) losses of affiliates		—			—			—			(458	)		—			—			(458	)
Restructuring costs		603			72			4			173			153			—			1,005
Other expense (income), net		280			(52	)		(154	)		(479	)		217			—			(188	)
Dividends received from affiliates		—			—			—			1,347			—			—			1,347
Adjusted EBITDA	$	1,765		$	8,133		$	418		$	4,063		$	(6,716	)	$	—		$	7,663
													Unallocated
Three Months Ended July 31, 2015	Water						Heavy			Mineral			Corporate			Other Items/
(in thousands)	Resources			Inliner			Civil			Services			Expenses			Eliminations			Total
Revenues	$	60,599		$	41,790		$	48,546		$	25,981		$	—		$	(599	)	$	176,317
(Loss) income  from continuing operations before income taxes	$	(962	)	$	4,422		$	(1,178	)	$	(14,422	)	$	(10,068	)	$	(4,295	)	$	(26,503	)
Interest expense		—			—			—			—			—			4,295			4,295
Depreciation expense and amortization		3,311			1,031			655			2,788			469			—			8,254
Non-cash equity-based compensation		80			46			5			45			527			—			703
Equity in (earnings) losses of affiliates		—			—			—			1,486			—			—			1,486
Impairment charges		4,598			—			—			—			—			—			4,598
Restructuring costs		(45	)		(2	)		(10	)		11,675			306			—			11,924
Other expense (income), net		269			(46	)		(179	)		(191	)		(105	)		—			(252	)
Dividends received from affiliates		—			—			—			847			—			—			847
Adjusted EBITDA	$	7,251		$	5,451		$	(707	)	$	2,228		$	(8,871	)	$	—		$	5,352

													Unallocated
Six Months Ended July 31, 2016	Water						Heavy			Mineral			Corporate			Other Items/
(in thousands)	Resources			Inliner			Civil			Services			Expenses			Eliminations			Total
Revenues	$	118,421		$	100,510		$	74,507		$	25,573		$	—		$	(223	)	$	318,788
(Loss) income  from continuing operations before income taxes	$	(1,938	)	$	12,453		$	(679	)	$	1,287		$	(16,309	)	$	(8,455	)	$	(13,641	)
Interest expense		—			—			—			—			—			8,455			8,455
Depreciation expense and amortization		6,168			2,516			897			3,020			781			—			13,382
Non-cash equity-based compensation		309			294			74			94			1,321			—			2,092
Equity in (earnings) losses of affiliates		—			—			—			(1,727	)		—			—			(1,727	)
Restructuring costs		603			72			395			237			153			—			1,460
Other expense (income), net		720			16			(138	)		(1,235	)		299			—			(338	)
Dividends received from affiliates		—			—			—			2,438			—			—			2,438
Adjusted EBITDA	$	5,862		$	15,351		$	549		$	4,114		$	(13,755	)	$	—		$	12,121
													Unallocated
Six Months Ended July 31, 2015	Water						Heavy			Mineral			Corporate			Other Items/
(in thousands)	Resources			Inliner			Civil			Services			Expenses			Eliminations			Total
Revenues	$	118,751		$	89,810		$	93,629		$	49,505		$	—		$	(1,107	)	$	350,588
Income (loss) from continuing operations before income taxes	$	1,929		$	9,664		$	(3,201	)	$	(16,974	)	$	(19,823	)	$	(3,911	)	$	(32,316	)
Interest expense		—			—			—			—			—			8,147			8,147
Depreciation expense and amortization		6,761			2,028			1,350			5,889			961			—			16,989
Non-cash equity-based compensation		229			585			183			168			1,148			—			2,313
Equity in (earnings) losses of affiliates		—			—			—			1,593			—			—			1,593
Impairment charges		4,598			—			—			—			—			—			4,598
Restructuring costs		18			17			31			11,696			352			—			12,114
Gain on extinguishment of debt		—			—			—			—			—			(4,236	)		(4,236	)
Other (income) expense, net		(167	)		(42	)		(540	)		(541	)		(3	)		—			(1,293	)
Dividends received from affiliates		—			—			—			2,210			—			—			2,210
Adjusted EBITDA	$	13,368		$	12,252		$	(2,177	)	$	4,041		$	(17,365	)	$	—		$	10,119

Summary of Revenue for Continuing Operations by Product Line and Major Geographic Area

The following table summarizes revenue for our continuing operations, by product line and by major geographic area, for the three and six months ended July 31, 2016 and 2015:

	Three Months				Six Months
	Ended July 31,				Ended July 31,
(in thousands)	2016		2015		2016		2015
Product Line Information
Water systems	$	49,394	$	54,896	$	104,872	$	107,405
Water treatment technologies		3,152		2,417		7,421		6,127
Sewer rehabilitation		52,976		41,790		100,510		89,810
Water and wastewater plant construction		21,132		39,434		42,440		73,157
Pipeline construction		13,569		8,785		30,542		18,975
Environmental and specialty drilling		3,393		2,215		6,276		3,598
Exploration drilling		13,618		24,424		23,912		45,488
Other		1,815		2,356		2,815		6,028
Total revenues	$	159,049	$	176,317	$	318,788	$	350,588
Geographic Information
United States	$	152,228	$	160,905	$	306,268	$	321,951
Africa/Australia		—		3,872		152		7,962
South America		1,838		2,073		2,301		3,983
Mexico		4,966		8,806		9,966		15,467
Other foreign		17		661		101		1,225
Total revenues	$	159,049	$	176,317	$	318,788	$	350,588