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Retention | 12 Months Ended
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Jan. 31, 2013
Retention [Abstract] |
Retention | Retention receivable is the amount withheld by a customer until a contract is completed. Retention receivables of $1.6 million and $0.6 million were included in the balance of trade accounts receivable as of January 31, 2013 and 2012, respectively.Retention payable is the amount withheld by the Company until a contract is completed. Retention payables of $0.5 million and $0.4 million were included in the balance of trade accounts payable as of January 31, 2013 and 2012, respectively.

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- Definition Explanation of the nature and status of amounts included within receivable balances billed but not paid by customers under retainage provisions in contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph c -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(c)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 310 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6471494&loc=d3e49370-109356 + Details
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