CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended |
|---|---|---|
Apr. 30, 2018 |
Jan. 31, 2018 |
|
| Current assets: | ||
| Allowance for doubtful accounts | $ 1,235 | $ 1,238 |
| Stockholders’ equity: | ||
| Treasury stock (in shares) | 99,371 | 99,371 |
| Average repurchase price of treasury stock shares (in dollars per share) | $ 13.27 | $ 13.27 |
| Class A Common Stock | ||
| Stockholders’ equity: | ||
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Common stock authorized (in shares) | 1,000,000,000 | 1,000,000,000 |
| Common stock issued (in shares) | 23,635,144 | 13,303,028 |
| Common stock outstanding (in shares) | 23,635,144 | 13,303,028 |
| Class B Common Stock | ||
| Stockholders’ equity: | ||
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Common stock authorized (in shares) | 100,000,000 | 100,000,000 |
| Common stock issued (in shares) | 27,061,251 | 37,371,914 |
| Common stock outstanding (in shares) | 26,961,880 | 37,272,543 |