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Schedule of Valuation and Qualifying Accounts (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 25, 2021 | Dec. 26, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |  |  |
Begining balance | $ 150,000 | $ 175,000 | $ 938,000
Additions charged to Income | 322,000 | 55,000 | 42,000
Deductions from reserve | (169,000) | (80,000) | (805,000)
Ending balance | $ 303,000 | $ 150,000 | $ 175,000

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