Stock-Based Compensation (Stock Incentive Plan) (Details) - Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2015	Sep. 30, 2014	Sep. 29, 2015	Sep. 30, 2014
Options, Outstanding [Roll Forward]
Outstanding, beginning of period	3,518,685	3,324,822.000	3,245,264	3,309,872.000
Granted	34,500	22,000	561,821.000	253,552
Exercised	(614,504)	(37,313.000)	(790,055.000)	(230,551)
Forfeited	(100,719)	(1,401.000)	(179,068.000)	(24,765)
Outstanding, end of period	2,837,962	3,308,108	2,837,962	3,308,108
Weighted average fair market value on option grant date	$ 4.81	$ 7.47	$ 5.88	$ 10.63
Stock based compensation expense	$ 455	$ 368	$ 1,155	$ 1,025
Capitalized stock based compensation expense	$ 56	$ 25	$ 156	$ 54