Long-Term Debt - (ABL Facilities) (Details) (USD $)	3 Months Ended			6 Months Ended	12 Months Ended					3 Months Ended		1 Months Ended	3 Months Ended	1 Months Ended		3 Months Ended		6 Months Ended	3 Months Ended
	Jun. 28, 2014	Jun. 28, 2014 Line of credit	Sep. 28, 2013 Line of credit	Jun. 28, 2014 Line of credit	Dec. 28, 2013 Line of credit	Jun. 28, 2014 US facility	Apr. 18, 2013 US facility	Jun. 28, 2014 Canadian facility	Apr. 18, 2013 Canadian facility	Jun. 28, 2014 LIBOR US facility	Jun. 28, 2014 CDOR US facility	Jun. 28, 2014 CDOR Canadian facility	Jun. 28, 2014 CDOR Canadian facility	Jun. 28, 2014 One-month LIBOR US facility	Jun. 28, 2014 30 Day CDOR Canadian facility	Jun. 28, 2014 US prime rate US facility	Jun. 28, 2014 Canadian primate rate Canadian facility	Jun. 28, 2014 Canadian primate rate Canadian facility	Jun. 28, 2014 Federal Funds Effective Rate US facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity							$ 150,000,000		$ 75,000,000
Debt instrument, covenant minimum availability as percentage of borrowing base				10.00%
Debt instrument, covenant minimum availability				20,000,000
Fixed charge coverage ratio	1.06:1.00
Line of credit facility, increase (decrease) in borrowing capacity, net					12,000,000
Write off of deferred debt issuance cost			500,000
Debt instrument, description of variable rate basis										LIBOR		CDOR	CDOR	one-month LIBOR		prime rate		Canadian prime	Federal Funds Effective Rate
Debt instrument, basis spread on variable rate										1.75%	1.75%			0.75%	0.75%	0.75%	0.75%		0.75%
Line of credit facility, unused capacity, commitment fee percentage		0.375%
Debt instrument, additional basis rate														1.00%	1.00%				0.50%
Line of credit facility, amount outstanding		80,200,000		80,200,000
Line of credit facility, remaining borrowing capacity		100,000,000		100,000,000
Line of credit facility, interest rate at period end						3.30%		4.00%
Letters of Credit Outstanding, Amount		$ 12,900,000		$ 12,900,000