Business Segments (Results Of Operations For Each Of Our Principal Business Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 segment	Sep. 30, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 65,472	$ 63,934	$ 194,681	$ 189,313
Operating expense	51,458	51,825	153,987	149,949
Depreciation and amortization	3,491	3,894	10,910	11,680
General and administrative expense	1,076	850	2,982	2,659
Segment operating income	9,447	7,365	26,802	25,025
Number of reportable business segments			2
Cinema Exhibition [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	61,228	59,246	180,657	174,636
Operating expense	50,655	50,554	151,612	147,117
Depreciation and amortization	2,540	2,786	7,824	8,349
General and administrative expense	891	653	2,463	2,137
Segment operating income	7,142	5,253	18,758	17,033
Real Estate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	6,157	6,570	19,764	20,324
Operating expense	2,716	3,153	8,115	8,479
Depreciation and amortization	951	1,108	3,086	3,331
General and administrative expense	185	197	519	522
Segment operating income	2,305	2,112	8,044	7,992
Intersegment Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	(1,913)	(1,882)	(5,740)	(5,647)
Operating expense	$ (1,913)	$ (1,882)	$ (5,740)	$ (5,647)