|
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
|
Oct. 31, 2012
|
Jan. 31, 2012
|
|---|---|---|
| CONDENSED CONSOLIDATED BALANCE SHEETS | ||
| Convertible preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Convertible preferred stock, shares authorized | 0 | 57,904,560 |
| Convertible preferred stock, shares issued | 0 | 56,930,194 |
| Convertible preferred stock, shares outstanding | 0 | 56,930,194 |
| Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Preferred stock, shares authorized | 20,000,000 | 0 |
| Preferred stock, shares issued | 0 | 0 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 1,000,000,000 | 106,511,960 |
| Common stock, shares issued | 96,925,524 | 23,092,407 |
| Common stock, shares outstanding | 96,925,524 | 23,092,407 |