Business Segments (Results Of Operations For Each Of Our Principal Business Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 segment	Mar. 31, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 59,567	$ 62,431
Operating expense	48,704	49,077
Depreciation & amortization	3,878	3,965
General & administrative expense	891	881
Segment operating income	6,094	8,508
Number of reportable business segments	2
Cinema Exhibition [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	54,770	57,402
Operating expense	47,948	48,215
Depreciation & amortization	2,759	2,830
General & administrative expense	771	702
Segment operating income	3,292	5,655
Real Estate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	6,710	6,911
Operating expense	2,669	2,744
Depreciation & amortization	1,119	1,135
General & administrative expense	120	179
Segment operating income	2,802	2,853
Intersegment Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	(1,913)	(1,882)
Operating expense	$ (1,913)	$ (1,882)