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Significant Accounting Policies: Earnings Per Share (Details) - shares
12 Months Ended
Dec. 28, 2024
Dec. 30, 2023
Dec. 31, 2022
Earnings Per Share      
Denominator for basic EPS - weighted average common shares 3,516,122 3,479,936 3,487,732
Dilutive shares associated with option plans 151,357 160,588 104,724
Denominator for diluted EPS - weighted average common shares and dilutive potential common shares 3,667,479 3,640,524 3,592,456
Options excluded from EPS calculation - anti-dilutive (in shares) 7,578 2,913 21,153