Business Segment Information (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Revenue From Reimbursement	$ 9,088	$ 8,557	$ 25,776	$ 23,424
Theatres [Member]
Revenue From Reimbursement	218	500	1,084	1,659
Hotels Resorts [Member]
Revenue From Reimbursement	$ 8,870	$ 8,057	$ 24,692	$ 21,765