Debt - $110.0 million Credit Facility (Details) (USD $) Share data in Millions, unless otherwise specified	0 Months Ended					0 Months Ended
	May 14, 2012	Jul. 27, 2011 Revolving credit facility	Dec. 29, 2013 Revolving credit facility	May 04, 2012 Revolving credit facility	Nov. 15, 2011 Revolving credit facility	Jul. 27, 2011 Revolving credit facility Minimum	Jul. 27, 2011 Revolving credit facility Maximum	Jul. 27, 2011 LIBOR base rate	Jul. 27, 2011 LIBOR base rate Minimum	Jul. 27, 2011 LIBOR base rate Maximum	Jul. 27, 2011 Base rate other than LIBOR	Jul. 27, 2011 Base rate other than LIBOR Minimum	Jul. 27, 2011 Base rate other than LIBOR Maximum	Dec. 29, 2013 Letter of credit	Jul. 27, 2011 Letter of credit	Jul. 27, 2011 Swing line loan
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 65,000,000		$ 110,000,000	$ 90,000,000										$ 50,000,000	$ 10,000,000
Maturity period		5 years
Fixed charge coverage ratio						1.25
Maximum possible borrowing capacity subject to application and bank approval				135,000,000
Common stock issued for cash (in shares)	20.0
Description of variable rate basis								LIBOR			federal funds rate
Basis spread on variable rate									3.00%	3.75%		1.00%	1.75%
Base rate (the greater of prime rate or 0.5% over federal funds rate)											0.50%
Base rate (floor, 1.0% over one-month LIBOR)											1.00%
Commitment fee						0.50%	0.75%
Outstanding borrowings			0											10,700,000
Remaining borrowing capacity			$ 79,900,000