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Note 8 - Accrued Liabilities (Details) - Accrued liabilities (USD $)
In Thousands, unless otherwise specified |
Oct. 31, 2013
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Jan. 31, 2013
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|---|---|---|
| Note 8 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | $ 1,487 | $ 1,831 |
| Accrued interest expense | 62 | |
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Accrued Payroll and Related Expenses (Member)
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| Note 8 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 51 | 147 |
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Uninvoiced Materials and Services Received (Member)
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| Note 8 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 1,214 | 1,269 |
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Accrued Legal and Professional Fees (Member)
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| Note 8 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 125 | 169 |
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Accrued Warranty (Member)
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| Note 8 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 43 | 68 |
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Accrued - Other (Member)
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| Note 8 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | $ 54 | $ 116 |