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Retirement plans 401K (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 31, 2014 | Jan. 31, 2013
401K [Abstract] |  |
401K employee pretax payroll contributions limit | 16.00% |
Company matches contribution | 50.00% |
maximum % of each participant's salary | 3.00% |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 15.00% |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 6.00% |
Employer contributions to 401K | $ 430 | $ 560

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- Details
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- Definition 401K employee pretax payroll contributions limit + References No definition available. + Details
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- Definition Company matches contribution + References No definition available. + Details
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- Definition Employer contributions to 401K + References No definition available. + Details
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- Definition maximum % of each participant's salary + References No definition available. + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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