Income Taxes - Components of Income Tax Expense (Benefit) from Continuing Operations (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 28, 2020 |
Mar. 30, 2019 |
Mar. 31, 2018 |
|
| Income Tax Disclosure [Abstract] | |||
| Current | $ 0 | $ 0 | $ 0 |
| Deferred | (3,195) | (4,769) | (5,922) |
| Valuation allowance | 3,195 | 4,769 | 5,922 |
| Income tax expense | $ 0 | $ 0 | $ 0 |