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Shareholders' Equity (Details 5) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jan. 31, 2013 | Jan. 31, 2012
Share-based compensation expense |  |
Share-based compensation, Total | $ 480 | $ 208
Stock Options [Member] |  |
Share-based compensation expense |  |
Share-based compensation, Total | 163 | 208
Restricted Stock Awards and Restricted Stock Units [Member] |  |
Share-based compensation expense |  |
Share-based compensation, Total | $ 317 |

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- Definition The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References No definition available. + Details
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- Details
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