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CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares
Dec. 31, 2023
Dec. 25, 2022
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 45,000,000 45,000,000
Common stock, shares issued (in shares) 20,449,000 20,449,000
Common stock, shares outstanding (in shares) 15,528,000 15,934,000
Preferred stock, par value per share (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 3,000,000 3,000,000
Preferred stock, shares outstanding (in shares) 0 0
Preferred stock, shares issued (in shares) 0 0
Treasury Stock (in shares) 4,921,000 4,515,000