Business Segments (Results Of Operations Of Principal Business Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 segment	Mar. 31, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 58,053	$ 59,567
Operating expense	46,765	48,704
Depreciation and amortization	3,714	3,878
General and administrative expense	1,071	891
Segment operating income	6,503	6,094
Number of reportable business segments	2
Cinema Exhibition Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	53,424	54,770
Operating expense	45,740	47,948
Depreciation and amortization	2,796	2,759
General and administrative expense	898	771
Segment operating income	3,990	3,292
Real Estate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	6,579	6,710
Operating expense	2,975	2,669
Depreciation and amortization	918	1,119
General and administrative expense	173	120
Segment operating income	2,513	2,802
Intersegment Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	(1,950)	(1,913)
Operating expense	$ (1,950)	$ (1,913)