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DEBT (Details) - USD ($)
$ in Thousands
Jun. 26, 2021
Dec. 26, 2020
DEBT    
PPP loan $ 4,974 $ 4,949
Revolving credit facility 1,600 1,491
Total debt 6,574 6,440
Amount due within one year 4,974 3,707
Total long-term debt $ 1,600 $ 2,733