Non-controlling Interests (Components Of Income Attributable To Non-controlling Interest) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Noncontrolling Interest [Line Items]
Net income attributable to noncontrolling interests in consolidated subsidiaries	$ 132	$ 11	$ 14	[1]
Australian Country Cinemas, Pty Ltd [Member]
Noncontrolling Interest [Line Items]
Net income attributable to noncontrolling interests in consolidated subsidiaries	157	164	140
Sutton Hill Properties, LLC [Member]
Noncontrolling Interest [Line Items]
Net income attributable to noncontrolling interests in consolidated subsidiaries	31	(108)	(68)
Shadow View Land And Farming, LLC [Member]
Noncontrolling Interest [Line Items]
Net income attributable to noncontrolling interests in consolidated subsidiaries	$ (56)	$ (45)	$ (58)

[1] Certain prior year balances have been reclassified to conform to the 2017 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).