Per Share Amounts and Common Shares Outstanding (Tables)

6 Months Ended

Jun. 30, 2012

Per Share Amounts and Common Shares Outstanding [Abstract]

Schedule of earnings per share, basic and diluted [Table Text Block]

The per share amounts were computed as follows: 

	Three Months Ended				Six Months Ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011
Income available to common shareholders:
Net Income	$	9,416	$	9,159	$	8,845	$	3,113
Weighted-average shares:
Basic:
Outstanding	13,838		14,058		13,851		14,093
Basic weighted-average shares	13,838		14,058		13,851		14,093
Diluted:
Basic from above	13,838		14,058		13,851		14,093
Incremental shares from assumed:
Exercise of stock options and awards	448		511		474		519
Diluted weighted-average shares	14,286		14,569		14,325		14,612
Net income per share:
Basic	$	.68	$	.65	$	.64	$	.22
Diluted	$	.66	$	.63	$	.62	$	.21

Schedule of common shares outstanding [Table Text Block]

Common Shares Outstanding--A summary of the activity of the common shares outstanding for the six months endedJune 30, 2012 follows: 

Shares outstanding at January 1, 2012	13,845,635
Shares purchased	(394,390	)
Shares sold	232,891
Options and awards exercised	129,081
	(32,418	)
Shares outstanding at June 30, 2012	13,813,217