v2.4.0.6

Note 7 - Accrued Liabilities (Detail) - Accrued liabilities (USD $) In Thousands, unless otherwise specified | Apr. 30, 2013 | Jan. 31, 2013
--- | --- | ---
Accrued Liabilities | $ 2,411 | $ 1,789
Accrued Payroll and Related Expenses (Member) |  |
Accrued Liabilities | 136 | 147
Uninvoiced Materials and Services Received (Member) |  |
Accrued Liabilities | 1,750 | 1,269
Accrued Legal and Professional Fees (Member) |  |
Accrued Liabilities | 272 | 169
Accrued Warranty (Member) |  |
Accrued Liabilities | 68 | 68
Accrued - Other (Member) |  |
Accrued Liabilities | $ 185 | $ 136

X
- Definition Amount of obligations incurred and payable, pertaining to costs that are statutory in nature, incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include, but not limited to, taxes, interest, rent and utilities. Also includes the aggregate carrying amount of liabilities not separately disclosed. + References No definition available. + Details
Name: | us-gaap_AccruedLiabilitiesAndOtherLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant