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Note 9 - Income Taxes (Detail) - Reconciliation of unrecognized tax benefits (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
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Jan. 31, 2013
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| Balance | $ 760 |
| Additions based on tax positions related to the current year | 17 |
| Balance | $ 777 |
| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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