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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) | Jun. 28, 2025 | Dec. 28, 2024
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CONDENSED CONSOLIDATED BALANCE SHEETS |  |
Accounts receivable, allowance for doubtful accounts | $ 585,993 | $ 530,560
Voting Preferred Stock, par value (in dollars per share) | $ 0 | $ 0
Voting Preferred Stock, shares authorized (in shares) | 1,000,000 | 1,000,000
Nonvoting Preferred Stock, par value (in dollars per share) | $ 0 | $ 0
Nonvoting Preferred Stock, shares authorized (in shares) | 1,000,000 | 1,000,000
Common Stock, par value (in dollars per share) | $ 0 | $ 0
Common Stock, shares authorized (in shares) | 50,000,000 | 50,000,000
Common Stock, shares issued (in shares) | 9,163,570 | 9,146,996
Common Stock, shares outstanding (in shares) | 6,098,163 | 6,163,138
Treasury Stock, shares (in shares) | 3,065,407 | 2,983,858

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