Earnings Per Share: (Tables)

9 Months Ended

Sep. 26, 2020

Earnings Per Share:

Schedule of shares outstanding used in the calculation of basic and diluted earnings per share

	Three Months Ended		Nine Months Ended
	September 26, 2020	September 28, 2019	September 26, 2020	September 28, 2019
Denominator for basic EPS — weighted average common shares	3,730,490	3,808,863	3,710,112	3,829,329
Dilutive shares associated with option plans	127,212	256,438	147,642	282,989
Denominator for diluted EPS — weighted average common shares and dilutive potential common shares	3,857,702	4,065,301	3,857,754	4,112,318
Options excluded from EPS calculation — anti-dilutive	11,979	7,146	11,057	6,782