|
Note 6 - Accrued Liabilities (Detail) - Accrued liabilities (USD $)
In Thousands, unless otherwise specified |
Jan. 31, 2013
|
Jan. 31, 2012
|
|---|---|---|
| Accrued Liabilities | $ 1,789 | $ 1,315 |
|
Accrued Payroll and Related Expenses (Member)
|
||
| Accrued Liabilities | 147 | 103 |
|
Uninvoiced Materials and Services Received (Member)
|
||
| Accrued Liabilities | 1,269 | 602 |
|
Accrued Legal and Professional Fees (Member)
|
||
| Accrued Liabilities | 169 | 204 |
|
Accrued Warranty (Member)
|
||
| Accrued Liabilities | 68 | 193 |
|
Accrued - Other (Member)
|
||
| Accrued Liabilities | $ 136 | $ 213 |