Benefit Plans (Narratives) (Details) (USD $)		3 Months Ended
	Apr. 02, 2011	Mar. 31, 2013 Up to 3% contribution [Member]	Mar. 31, 2013 3% to 5% contribution [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer, Amount Matched Every One Dollar	$ 0.50
Defined Benefit Plan, Contributions by Employer, Matching Policy Per Dollar	$ 1.00
Defined Benefit Plan, Contributions by Employer, Maximum Limit of Employee Salary, Percent	1.00%
Defined Contribution Plan, Employer Matching Contribution, Percent		100.00%	50.00%