Income Taxes (Components of Deferred Income Taxes) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Deferred tax assets (liabilities):
Loss carry forwards	$ 30,255	$ 32,896
Deferred rent and franchise revenue	909	10,433
Property, equipment and intangible assets	(8,242)	(10,472)
Stock-based compensation	1,376	1,242
Tax credit carry forwards	3,936	3,528
Interest expense	0	998
Inventory smallwares	(1,748)	(1,740)
Other accrued expenses	533	959
Operating lease assets	(55,725)	0
Operating lease liabilities	67,166	0
Other	756	795
Total net deferred tax assets	39,216	38,639
Valuation allowance	(39,416)	(38,772)
Net deferred tax liabilities	$ (200)	$ (133)