Business Segments (Results Of Operations For Each Of Our Principal Business Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 63,144	$ 67,173	$ 125,796	$ 121,416
Operating expense	49,110	50,828	98,239	94,735
Depreciation & amortization	3,910	4,285	7,968	8,411
General & administrative expense	928	876	1,809	1,674
Segment operating income	9,196	11,184	17,780	16,596
Cinema Exhibition [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	57,988	62,236	115,390	111,710
Operating expense	48,347	49,901	96,563	93,043
Depreciation & amortization	2,733	3,000	5,563	5,904
General & administrative expense	782	669	1,484	1,280
Segment operating income	6,126	8,666	11,780	11,483
Real Estate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	7,038	6,604	14,171	13,040
Operating expense	2,645	2,594	5,441	5,026
Depreciation & amortization	1,177	1,285	2,405	2,507
General & administrative expense	146	207	325	394
Segment operating income	3,070	2,518	6,000	5,113
Intersegment Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	(1,882)	(1,667)	(3,765)	(3,334)
Operating expense	$ (1,882)	$ (1,667)	$ (3,765)	$ (3,334)