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Note 12 - Employee Benefit Plans (Details) (USD $)
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12 Months Ended | |
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Jan. 31, 2014
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Jan. 31, 2013
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| Note 12 - Employee Benefit Plans (Details) [Line Items] | ||
| Number of Days | 30 days | |
| Years of Age | 18 years | |
| Defined Contribution Plans Vesting Period | 4 years | |
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 21,000 | $ 33,000 |
| Defined Benefit Plan, Contributions by Employer | $ 21,000 | $ 14,000 |
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 100.00% | |
| Defined Contribution Plan, Percent of Employee Contribution | 5.00% | |
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Minimum [Member]
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| Note 12 - Employee Benefit Plans (Details) [Line Items] | ||
| Defined Contribution Plan, Employee Contribution | 1.00% | |
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Maximum [Member]
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| Note 12 - Employee Benefit Plans (Details) [Line Items] | ||
| Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 20.00% | |