Asset Sales (Details Textual) - USD ($)	1 Months Ended	3 Months Ended	7 Months Ended		12 Months Ended
	Oct. 16, 2015	Dec. 28, 2017	Dec. 31, 2015	Dec. 25, 2014	Dec. 28, 2017	Dec. 29, 2016	Dec. 31, 2015	May 28, 2015	Oct. 20, 2017
Asset Sales [Line Items]
Gain (loss) on disposition of property, equipment and other assets			$ (490,000)	$ (719,000)	$ 3,981,000	$ (844,000)	$ (1,233,000)	$ (1,463,000)
Hotel Phillips Revenues			3,925,000					9,736,000
Hotel Phillips Operating Income (Loss)			291,000					739,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners									11.00%
Equity Method Investment, Realized Gain (Loss) on Disposal		$ 4,875,000
Proceeds From Sale Of Property Plant and Equipment			13,977,000		$ 4,524,000	$ 1,560,000		$ 226,000
Hotel Phillips [Member]
Asset Sales [Line Items]
Gain (loss) on disposition of property, equipment and other assets			$ (70,000)
Gross Proceeds Sale Of Property Plant And Equipment	$ 13,500,000
Proceeds From Sale Of Property Plant and Equipment	$ 13,100,000