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Investment in joint venture (Notes) | 9 Months Ended
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Oct. 31, 2013
Investment in joint venture [Abstract] |
Equity Method Investments [Table 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 completed an acquisition of Garneau, Inc.'s pipe coating and insulation facility and associated assets located in Camrose, Alberta, Canada, which provides the Company the opportunity to participate in the growing oil sands market. In February 2012, the Company loaned $1 million to the joint venture to be used for capital expenditures. 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.
| Nine Months Ended October 31,
| 2013 | 2012
Income from joint venture | $248 | $354
The following information summarizes the joint venture financial data as of October 31, 2013 and January 31, 2013, respectively:
| October 31, 2013 |  | January 31, 2013 |
Current assets | $12,312 | $14,058
Noncurrent assets | 18,613 |  | 19,442 |
Current liabilities | 2,306 |  | 2,703 |
Noncurrent liabilities | 15,989 |  | 18,274 |
Equity | $12,630 | $12,524
| Nine Months Ended October 31,
| 2013 |  | 2012 |
Revenue |  | $19,913 |  |  | $19,389 |
Gross profit | 3,157 |  | 3,616 |
Income from continuing operations | 1,570 |  | 1,827 |
Net income | $516 | $726

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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