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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 26, 2024
Accounts receivables $ 225 $ 141
Preferred stock, par (in dollars per share) $ 1 $ 1
Preferred stock, authorized (in shares) 1,000,000 1,000,000
Preferred stock, issued (in shares) 0 0
Cost of common stock in treasury (in shares) 1,042,655 604,914
Common Stock    
Common stock, par (in dollars per share) $ 1 $ 1
Common stock, authorized (in shares) 50,000,000 50,000,000
Common stock, issued (in shares) 25,369,054 25,237,374
Class B Common Stock    
Common stock, par (in dollars per share) $ 1 $ 1
Common stock, authorized (in shares) 33,000,000 33,000,000
Common stock, issued (in shares) 6,984,584 6,984,584
Common stock, outstanding (in shares) 6,984,584 6,984,584