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Acquisition - Unaudited Pro forma Information (Detail) (Miltope Ruggedized Printer Product Line Operation [Member], USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 31, 2014 | Jan. 31, 2013
Miltope Ruggedized Printer Product Line Operation [Member] |  |
Business Acquisition [Line Items] |  |
Net Revenue | $ 75,362 | $ 69,453

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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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