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CONSOLIDATED BALANCE SHEETS - Parenthetical - USD ($)
Dec. 31, 2023
Jan. 01, 2023
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 554,000 $ 558,000
Long-term debt, current portion - Debt issuance costs 0 0
Line of credit - Debt issuance costs 128,000 259,000
Long-term debt, less current portion - Debt issuance costs $ 0 $ 0
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 500,000 500,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 19,500,000 19,500,000
Common stock, shares issued (in shares) 10,888,000  
Common stock, shares outstanding (in shares) 10,888,000