Note 6 - Supplier Concentration Risk Accounts Receivable (Details) - USD ($) |
3 Months Ended | 12 Months Ended |
|---|---|---|
Apr. 30, 2016 |
Jan. 31, 2016 |
|
| Supplier Concentration Risk [Member] | Zheng Ge Electrical Company Ltd [Member] | Account Receivable from Suppliers [Member] | ||
| Accounts receivable | $ 122,000 | $ 122,000 |
| Concentration percentage, accounts receivables | 100.00% | 100.00% |
| Supplier Concentration Risk [Member] | Account Receivable from Suppliers [Member] | ||
| Accounts receivable | $ 122,000 | $ 122,000 |
| Concentration percentage, accounts receivables | 100.00% | 100.00% |
| Supplier Concentration Risk [Member] | ||
| Accounts receivable | $ 122,000 | $ 122,000 |
| Concentration percentage, accounts receivables | 100.00% | 100.00% |
| Accounts receivable | $ 122,000 | $ 122,000 |