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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 29, 2020 | Jun. 28, 2020 | Jun. 30, 2019
Income Taxes [Abstract] |  |  |
Increase in valuation allowance on deferred tax assets | $ 4,300 | $ 4,300 |
Income tax expense |  | 4,078 | $ (51)
Federal deferred tax expense |  | 4,053 | (189)
Current state tax expense |  | 20 | $ 93
Net operating loss carryforwards |  | $ 23,600 |
Operating loss carryforwards, expiry date |  | Dec. 31, 2032 |
Amount of operating loss carryforwards limited with no expiration |  | $ 800 |
Operating loss carryforward, percentage limitation on use |  | 80.00% |

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