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CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($)
Sep. 27, 2025
Dec. 28, 2024
CONSOLIDATED CONDENSED BALANCE SHEETS    
Receivables, allowance for doubtful accounts $ 500 $ 500
Unamortized debt issuance costs - Noncurrent $ 43,500 $ 57,200
Common stock, par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 3,561,550 3,539,744
Common stock, shares outstanding 3,561,550 3,539,744