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Note 12 - Employee Benefit Plans (Detail) (USD $)
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12 Months Ended | |
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Jan. 31, 2013
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Jan. 31, 2012
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| Number of Days | 30 | |
| Years of Age | 18 | |
| Defined Contribution Plans Vesting Period | 4 years | |
| Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars) | $ 33,000 | $ 65,000 |
| Defined Benefit Plan, Contributions by Employer (in Dollars) | $ 14,000 | $ 32,000 |
| X | ||||||||||
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- Definition
Defined contribution plans vesting period. No definition available.
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| X | ||||||||||
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- Definition
Number of Days No definition available.
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| X | ||||||||||
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- Definition
Years of Age No definition available.
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| X | ||||||||||
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- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
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