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Note 7 - Accrued Liabilities (Details) - Accrued Liabilities (USD $)
In Thousands, unless otherwise specified |
Apr. 30, 2014
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Jan. 31, 2014
|
|---|---|---|
| Note 7 - Accrued Liabilities (Details) - Accrued Liabilities [Line Items] | ||
| Accrued Liabilities | $ 911 | $ 1,012 |
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Uninvoiced Materials and Services Received (Member)
|
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| Note 7 - Accrued Liabilities (Details) - Accrued Liabilities [Line Items] | ||
| Accrued Liabilities | 458 | 458 |
|
Accrued Legal and Professional Fees [Member]
|
||
| Note 7 - Accrued Liabilities (Details) - Accrued Liabilities [Line Items] | ||
| Accrued Liabilities | 112 | 161 |
|
Accrued Payroll and Related Expenses [Member]
|
||
| Note 7 - Accrued Liabilities (Details) - Accrued Liabilities [Line Items] | ||
| Accrued Liabilities | 45 | 58 |
|
Accrued Warranty [Member]
|
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| Note 7 - Accrued Liabilities (Details) - Accrued Liabilities [Line Items] | ||
| Accrued Liabilities | 20 | 20 |
|
Accrued Other Liabilities [Member]
|
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| Note 7 - Accrued Liabilities (Details) - Accrued Liabilities [Line Items] | ||
| Accrued Liabilities | $ 276 | $ 315 |