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Note 6 - Accrued Liabilities (Details) - Accrued liabilities (USD $)
In Thousands, unless otherwise specified |
Jan. 31, 2014
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Jan. 31, 2013
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|---|---|---|
| Note 6 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | $ 1,012 | $ 1,831 |
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Uninvoiced Materials and Services Received (Member)
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| Note 6 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 458 | 1,269 |
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Accrued Legal and Professional Fees (Member)
|
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| Note 6 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 161 | 169 |
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Accrued Payroll and Related Expenses (Member)
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| Note 6 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 58 | 147 |
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Accrued Warranty (Member)
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| Note 6 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | 20 | 68 |
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Accrued - Other (Member)
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| Note 6 - Accrued Liabilities (Details) - Accrued liabilities [Line Items] | ||
| Accrued Liabilities | $ 315 | $ 178 |