Accounts Receivable (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2013		Dec. 31, 2012		Jan. 02, 2012
Reserve for doubtful accounts [Roll Forward]
Amount included in reserve on note receivable	$ 344	[1]	$ 303
Due from franchisees [Member]
Reserve for doubtful accounts [Roll Forward]
Amount included in reserve on note receivable	500
Doubtful accounts [Member]
Reserve for doubtful accounts [Roll Forward]
Balance at the beginning of the period	303		254		145
Charged to costs and expenses	491	[2]	46		117
Deductions	0	[3]	3	[3]	(8)	[3]
Balance at the end of the period	$ 794		$ 303		$ 254

[1] Does not include approximately $0.45 million in reserve on a note receivable from a franchisee presented in Note 5. Notes Receivable.

[2] Includes approximately $0.5 million reserve on a note receivable from a franchisee

[3] Recovery (write-off) of uncollectible accounts.