Investment in joint venture (Notes)

9 Months Ended

Oct. 31, 2015

Schedule of Equity Method Investments [Line Items]

Equity Method Investments and Joint Ventures Disclosure [Text Block]

Investment in joint venture. In October 2009, the Company invested $5.9 million, which consisted of $2 million for a 49% interest and $3.9 million for a note receivable, in a Canadian joint venture with The Bayou Companies, Inc., a subsidiary of Aegion Corporation. The joint venture operates in Camrose, Alberta, Canada, which provides the Company the opportunity to participate in the oil sands market. During the first six months of 2015, the Company received $1.9 million in principal repayments on the note receivable.

The Company accounts for the investment in the joint venture using the equity method. The financial results are included in the Company's consolidated financial statements.



	Three Months Ended October 31,				Nine Months Ended October 31,
	2015		2014		2015		2014
Share of income from joint venture		$408		$903		$524		$1,114

The following information summarizes the joint venture financial data as of October 31, 2015 and January 31, 2015, respectively:



	October 31, 2015	January 31, 2015
Current assets	$11,008	$13,820
Noncurrent assets	13,366	14,023
Current liabilities	5,127	4,499
Noncurrent liabilities	4,220	9,013
Equity	15,027	14,331



	Three Months Ended October 31,				Nine Months Ended October 31,
	2015		2014		2015		2014
Revenue		$8,780		$11,886		$18,922		$28,666
Gross profit	1,603		3,310		3,082		5,426
Income from continuing operations	1,257		2,749		1,823		3,820
Net income	833		1,843		1,070		2,274