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, 2012	Sep. 30, 2011	Sep. 30, 2012 segment	Sep. 30, 2011
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 63,934	$ 66,554	$ 189,313	$ 187,558
Operating expense	51,825	51,162	149,949	145,782
Depreciation & amortization	3,894	3,999	11,680	12,227
General & administrative expense	850	779	2,659	2,454
Segment operating income	7,365	10,614	25,025	27,095
Number of reportable business segments			2
Cinema Exhibition [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	59,246	61,867	174,636	173,577
Operating expense	50,554	50,310	147,117	143,352
Depreciation & amortization	2,786	2,966	8,349	8,869
General & administrative expense	653	649	2,137	1,930
Segment operating income	5,253	7,942	17,033	19,426
Real Estate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	6,570	6,354	20,324	18,981
Operating expense	3,153	2,519	8,479	7,430
Depreciation & amortization	1,108	1,033	3,331	3,358
General & administrative expense	197	130	522	524
Segment operating income	2,112	2,672	7,992	7,669
Intersegment Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	(1,882)	(1,667)	(5,647)	(5,000)
Operating expense	$ (1,882)	$ (1,667)	$ (5,647)	$ (5,000)