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INCOME TAXES - Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 29, 2023 | Sep. 29, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 30, 2022 | Sep. 30, 2022 | Jul. 01, 2022 | Apr. 01, 2022 | Dec. 29, 2023 | Dec. 30, 2022 | Dec. 31, 2021
Provision for income taxes reconciliation |  |  |  |  |  |  |  |  |  |  |
Computed "expected" federal income tax expense |  |  |  |  |  |  |  |  | $ 3,064 | $ (2,405) | $ (2,605)
Permanent differences |  |  |  |  |  |  |  |  | 194 | 24 | 18
Nondeductible executive compensation |  |  |  |  |  |  |  |  | 121 | 711 | 1,349
Stock options and disqualifying dispositions |  |  |  |  |  |  |  |  | 560 | 576 | (1,276)
Energy efficient building deduction |  |  |  |  |  |  |  |  | (717) | (1,378) | (558)
Current and deferred state income tax expense, net of federal benefit |  |  |  |  |  |  |  |  | 1,250 | (111) | (660)
Research and development tax credit |  |  |  |  |  |  |  |  | (867) | (517) | (761)
Federal rate differential on NOL carryback |  |  |  |  |  |  |  |  |  |  | (579)
Change in valuation allowance |  |  |  |  |  |  |  |  |  |  | 1,105
Other |  |  |  |  |  |  |  |  | 60 | 96 | (20)
Total provision for income taxes | $ 1,953 | $ 713 | $ 243 | $ 756 | $ 2,584 | $ (1,526) | $ (1,673) | $ (2,389) | $ 3,665 | $ (3,004) | $ (3,987)

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible energy efficient commercial building costs. + References No definition available. + Details
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