Income Taxes - Summary of Net Deferred Tax Assets Related to Continuing Operations (Detail) - USD ($) $ in Thousands |
Mar. 28, 2020 |
Mar. 30, 2019 |
|---|---|---|
| Deferred tax assets: | ||
| Loss and tax credit carry forwards | $ 14,987 | $ 14,053 |
| Difference between book and tax basis of property and equipment | 3,674 | 4,036 |
| Operating lease right-of-use asset | 3,820 | 0 |
| Other reserves not currently deductible | 136 | 151 |
| Expenses not currently deductible | 0 | 1,153 |
| Other | (142) | (117) |
| Net deferred tax asset before valuation allowance | 22,475 | 19,276 |
| Valuation allowance | (22,475) | (19,276) |
| Net deferred tax asset | $ 0 | $ 0 |