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Note 6 - Customer and Supplier Concentrations (Details) - Supplier Concentration Risk Accounts Receivable (USD $)
In Thousands, unless otherwise specified |
Apr. 30, 2014
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Jan. 31, 2014
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|---|---|---|
| Note 6 - Customer and Supplier Concentrations (Details) - Supplier Concentration Risk Accounts Receivable [Line Items] | ||
| Total gross accounts receivable due from suppliers | $ 128 | $ 128 |
| Total gross accounts receivable due from suppliers | 100.00% | 100.00% |
| Customer concentration: | ||
| Balance | 122 | 122 |
| Percentage | 95.00% | 95.00% |
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Zheng Ge Electrical Company Ltd [Member]
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| Customer concentration: | ||
| Balance | $ 122 | $ 122 |
| Percentage | 95.00% | 95.00% |