Net Income Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted Average Number of Shares Outstanding, Basic	23,383,000	22,788,000	23,215,000	22,713,000
Earnings Per Share, Basic	$ 0.44	$ 0.49	$ 1.15	$ 1.92
Weighted Average Number Diluted Shares Outstanding Adjustment	430,000	480,000	491,000	543,000
Dilutive Securities, Effect on Basic Earnings Per Share, Including Options and Restrictive Stock Units	$ (0.01)	$ (0.01)	$ (0.03)	$ (0.04)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,047,143	2,204,378	414,007	2,200,378
Weighted Average Number of Shares Outstanding, Diluted	23,813,000	23,268,000	23,706,000	23,256,000
Earnings Per Share, Diluted	$ 0.43	$ 0.48	$ 1.12	$ 1.88