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Note 11 - Accrued Liabilities (Tables) | 12 Months Ended
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Jan. 31, 2016
Payables and Accruals [Abstract] |
Schedule of Accrued Liabilities [Table Text Block] |
|  | January 31, 2016 |  |  | January 31, 2015 |
Accrued compensation and benefits |  |  | 10,700 |  |  |  | 9,017 |
Accrued professional fees |  |  | 1,211 |  |  |  | 1,137 |
Other accrued liabilities |  |  | 4,933 |  |  |  | 6,541 |
|  |  | 16,844 |  |  |  | 16,695 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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