FAIR VALUE MEASUREMENTS (Details) - USD ($) |
Jan. 31, 2017 |
Jan. 31, 2016 |
|---|---|---|
| Total carrying value | ||
| Foreign currency investments | $ 0 | $ 14,681 |
| Derivative liabilities | 0 | 0 |
| Quoted prices in active markets (Level 1) | ||
| Foreign currency investments (Level 1) | 0 | 0 |
| Derivative liabilities (Level 1) | 0 | 0 |
| Significant other observable inputs (Level 2) | ||
| Foreign currency investments (Level 2) | 0 | 0 |
| Derivative liabilities (Level 2) | 0 | 0 |
| Significant unobservable inputs (Level 3) | ||
| Foreign currency investments (Level 3) | 0 | 14,681 |
| Derivative liabilities (Level 3) | $ 0 | $ 0 |