Earnings Per Share: (Tables)

9 Months Ended

Sep. 24, 2016

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 24, 2016	September 26, 2015	September 24, 2016	September 26, 2015
Denominator for basic EPS — weighted average common shares	4,116,957	4,128,031	4,113,819	4,568,813
Dilutive shares associated with option plans	211,211	210,199	206,465	189,345
Denominator for diluted EPS — weighted average common shares and dilutive potential common shares	4,328,168	4,338,230	4,320,284	4,758,158
Options excluded from EPS calculation — anti-dilutive	12,868	5,309	18,348	16,961