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SIGNIFICANT ACCOUNTING POLICIES (Details - Investment in Joint Ventures) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 24, 2022 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Roll Forward] |  |  |  |  |
Beginning balance |  |  |  | $ 42,229 |
Equity in earnings in these joint ventures |  | $ 2,748 | $ 3,121 | 5,266 | $ 5,406
Equity contributions in existing joint ventures | $ 1,400 |  |  | 1,441 |
Ending balance |  | $ 48,936 |  | $ 48,936 |

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