Business Combinations (Schedule Of Purchase Price Allocation) (Details) $ in Thousands, $ in Thousands		2 Months Ended		4 Months Ended
		Mar. 31, 2020 USD ($)		Mar. 31, 2020 USD ($)		Dec. 31, 2020 USD ($)		Dec. 03, 2019 USD ($)		Dec. 03, 2019 AUD ($)	Jan. 30, 2019 USD ($)		Jan. 30, 2019 AUD ($)
Devonport, Tasmania, Australia [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fixtures and equipment	[1]					$ 153					$ 153
Goodwill	[1]					1,225					1,248
Total assets acquired	[1]					1,378					1,401
Net assets acquired						$ 1,378	[1]				$ 1,401	[1]	$ 1,950
Goodwill, Measurement Period Adjustments	[2]	$ (23)
Total intangible assets acquired, Measurement Period Adjustments	[2]	(23)
Total assets acquired, Measurement Period Adjustments	[2]	(23)
State Cinema Hobart, Tasmania, Australia [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fixtures and equipment	[3]	362		$ 362				$ 481
Deferred tax	[3]	5		5				5
Inventory	[3]	333		333				333
Brand name	[3]	250		250
Liquor license	[3]	1		1
Goodwill	[3]	5,485		5,485				5,617
Total assets acquired	[3]	6,436		6,436				6,436
Employee liabilities	[3]	(20)		(20)				(20)
Deferred revenue balances	[3]	(236)		(236)				(236)
Total liabilities acquired	[3]	(256)		(256)				(256)
Net assets acquired		$ 6,180	[3]	6,180	[3]			$ 6,180	[3]	$ 9,000
Fixtures and equipment, Measurement Period Adjustments				(119)
Brand name, Measurement Period Adjustments				250
Liquor license, Measurement Period Adjustments				1
Goodwill, Measurement Period Adjustments				$ (132)

[1] The balances were translated into U.S. Dollars based on the applicable exchange rate as of the date of acquisition, January 30, 2019.

[2] The measurement period adjustments relate to finalization of immaterial employee obligations.

[3] The balances were translated into U.S. Dollars based on the applicable exchange rate as of the date of acquisition, December 3, 2019.