Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 27, 2015	Dec. 28, 2014	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Operating Loss Carryforwards [Line Items]
Current	$ 0		$ 0	$ 0	$ 219
Deferred	1,989		(2,632)	(4,210)	(7,774)
Valuation Allowance	(1,989)		0	4,210	0
Provision (benefit) for income taxes	0		$ (2,632)	0	$ (7,555)
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(1,900)	$ (24,300)		(4,300)
Effective Income Tax Rate			37.50%		37.50%
Deferred Tax Assets, Valuation Allowance	31,700			31,700
Unrecognized Tax Benefits	0	0		0
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	0	$ 0		0
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Valuation Allowance	3,400			3,400
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 36,500			$ 36,500