Segment Reporting: (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013 item	Jun. 30, 2012	Dec. 29, 2012
Segment Reporting:
Number of reportable business segments			2
Segment Reporting
Total revenue	$ 14,023,500	$ 12,192,400	$ 27,171,900	$ 24,025,800
Total operating income	7,061,200	6,026,500	13,737,100	11,872,700
Total depreciation	105,000	104,900	212,000	219,400
Total identifiable assets	43,715,700		43,715,700		43,538,800
Franchising
Segment Reporting
Total revenue	9,893,300	8,907,400	19,633,900	18,348,700
Total operating income	4,840,800	4,271,300	9,674,900	9,099,800
Total depreciation	82,600	81,300	166,800	170,200
Total identifiable assets	2,821,200		2,821,200		2,957,200
Leasing
Segment Reporting
Total revenue	4,130,200	3,285,000	7,538,000	5,677,100
Total operating income	2,220,400	1,755,200	4,062,200	2,772,900
Total depreciation	22,400	23,600	45,200	49,200
Total identifiable assets	38,588,100		38,588,100		37,622,800
Unallocated
Segment Reporting
Total identifiable assets	$ 2,306,400		$ 2,306,400		$ 2,958,800