NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, shares in Thousands	12 Months Ended
	Dec. 30, 2018 USD ($) item restaurant $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares
Franchisor Disclosure Line Items
Number Of Restaurants | restaurant	144
Number of States in which Entity Operates | item	33
Cash, FDIC Insured Amount	$ 250,000
Cash, Uninsured Amount	4,600,000	$ 9,000,000
Losses on uninsured cash balances	$ 0	0
Franchisee Marketing Fund Contribution Rate	1.00%
Restricted Cash And Cash Equivalents	$ 842,000	1,590,000
Accounts receivable, net	4,300,000	3,768,000
Advertising Expense	2,700,000	2,200,000
Research and Development Expense	$ 441,000	$ 382,000
Basic net income per common share Abstract
Weighted average common shares outstanding basic | shares	8,599	7,015
Basic net income per common share | $ / shares	$ 0.57	$ (1.16)
Weighted average common shares outstanding diluted | shares	8,624	7,015
Diluted net income per common share | $ / shares	$ 0.56	$ (1.16)
Net income (loss) from continuing operations	$ 4,862,000	$ (6,666,000)
Net loss from discontinued operations, net of tax		(1,457,000)
Net income (loss)	$ 4,862,000	$ (8,123,000)
Income (loss) from continuing operations per basic share | $ / shares	$ 0.57	$ (0.95)
Income loss from discontinued operations per basic share | $ / shares		(0.21)
Income loss from continuing operations per diluted share | $ / shares	$ 0.56	(0.95)
Income loss from discontinued operations per diluted share | $ / shares		$ (0.21)
Anti-dilutive Securities Excluded From Computation Of Earnings Per Share Amount | shares	111	539
Goodwill
Goodwill impairment	$ 0
Customer Concentration Risk [Member]
Franchisor Disclosure Line Items
Accounts receivable, net	578,000
Cash Restricted for Letters of Credit [Member]
Franchisor Disclosure Line Items
Restricted Cash And Cash Equivalents	143,000
Public Relations and Marketing Development Fund [Member]
Franchisor Disclosure Line Items
Restricted Cash And Cash Equivalents	$ 700,000	$ 1,300,000
Franchised Units [Member]
Franchisor Disclosure Line Items
Number Of Restaurants | restaurant	127
Committed Restaurants | restaurant	63
Entity Operated Units [Member]
Franchisor Disclosure Line Items
Number Of Restaurants | restaurant	17
Building [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	30 years
Decor [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	7 years
Software [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member] | Furniture and Fixtures [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Leasehold Improvements [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	0 years
Minimum [Member] | Restaurant Signage [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Furniture and Fixtures [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	7 years
Maximum [Member] | Leasehold Improvements [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	30 years
Maximum [Member] | Restaurant Signage [Member]
Property, Equipment, And Leasehold Improvements, Net [Abstract]
Property, Plant and Equipment, Useful Life	15 years