Earnings (Loss) Per Share - Additional Information (Details) - shares |
Apr. 29, 2018 |
Apr. 30, 2017 |
|---|---|---|
| Restricted Stock Units | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Restricted shares outstanding | 300,928 | 220,046 |
| Common Stock | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Options to purchase common stock outstanding | 2,360,174 | 1,871,346 |