Earnings Per Share: (Tables)

9 Months Ended

Sep. 29, 2012

Earnings Per Share:

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

	Three Months Ended		Nine Months Ended
	September 29,  2012	September 24,  2011	September 29,  2012	September 24,  2011
Denominator for basic EPS — weighted average common shares	5,013,822	4,970,046	5,041,023	4,980,160
Dilutive shares associated with option plans	208,897	293,297	216,034	259,264
Denominator for diluted EPS — weighted average common shares and dilutive potential common shares	5,222,719	5,263,343	5,257,057	5,239,424
Options excluded from EPS calculation — anti-dilutive	23,270	2,614	18,863	10,640