Segment Reporting (Summary Of Real Estate Segment Revenue To Segment Operating Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 210,527	$ 222,744	$ 203,115
Depreciation and amortization	(15,779)	(18,422)	(20,918)
General and administrative expense	(20,161)	(20,172)	(21,416)
Operating income (loss)	(14,033)	(12,031)	(28,483)
Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	215,136	227,511	208,138
Operating expense	(193,229)	(200,948)	(192,738)
Depreciation and amortization	(15,392)	(17,711)	(19,846)
General and administrative expense	(4,633)	(4,937)	(5,215)
Operating income (loss)	1,882	3,915	(11,210)
Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	20,006	19,870	16,817
Operating expense	(9,243)	(8,763)	(8,947)
Depreciation and amortization	(5,160)	(6,376)	(6,495)
General and administrative expense	(924)	(940)	(869)
Depreciation, amortization, general and administrative expense	(6,084)	(7,316)	(7,364)
Operating income (loss)	4,679	3,791	506
United States [Member] | Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	6,245	6,198	3,037
Occupancy expense	(694)	(789)	(787)
Utilities	(116)	(184)	(123)
Cleaning and maintenance	(183)	(170)	(108)
Other operating expenses	(1,096)	(1,237)	(1,056)
Operating expense	(3,113)	(3,145)	(2,997)
Depreciation and amortization	(2,628)	(3,104)	(2,985)
General and administrative expense	(866)	(700)	(695)
Depreciation, amortization, general and administrative expense	(3,494)	(3,804)	(3,680)
Operating income (loss)	(362)	(751)	(3,640)
United States [Member] | Live Theater Rental And Ancillary [Member] | Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	2,024	1,803	1,729
Operating expense	(1,024)	(765)	(923)
United States [Member] | Property Rental [Member] | Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	4,221	4,395	1,308
Australia [Member] | Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Occupancy expense	(1,988)	(1,956)	(2,057)
Labor cost	(247)	(218)	(256)
Utilities	(72)	(73)	(81)
Cleaning and maintenance	(983)	(927)	(1,058)
Other operating expenses	(929)	(892)	(779)
Operating expense	(4,219)	(4,066)	(4,231)
Depreciation and amortization	(2,091)	(2,514)	(2,683)
General and administrative expense	(58)	(240)	(174)
Depreciation, amortization, general and administrative expense	(2,149)	(2,754)	(2,857)
Operating income (loss)	5,973	5,343	5,158
Australia [Member] | Property Rental [Member] | Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	12,341	12,163	12,246
New Zealand [Member] | Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Occupancy expense	(474)	(418)	(401)
Labor cost	(22)	(99)	(99)
Utilities	(62)	(53)	(52)
Cleaning and maintenance	(44)	(33)	(71)
Other operating expenses	(1,309)	(949)	(1,096)
Operating expense	(1,911)	(1,552)	(1,719)
Depreciation and amortization	(441)	(758)	(827)
Depreciation, amortization, general and administrative expense	(441)	(758)	(827)
Operating income (loss)	(932)	(801)	(1,012)
New Zealand [Member] | Property Rental [Member] | Real Estate [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 1,420	$ 1,509	$ 1,534