Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Thousands		Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2017		22,780
Balance at Dec. 31, 2017		$ 23	$ (5,955)	$ 134,719	$ (32,452)		$ 13,844	$ 110,179
Net loss					(2,187)		964	(1,223)
Additional paid-in capital - share-based compensation				43				43
Distributions and distribution equivalents declared on common shares and restricted share units	[1]				(7,874)			(7,874)
Purchases of shares of common shares for treasury			(3,655)					(3,655)
Reissuance of shares of common shares from treasury			1,678	23				1,701
Distributions to non-controlling interest holders							(2,414)	(2,414)
Derecognition of non-controlling interest due to deconsolidation
Purchase of subsidiary shares from non-controlling interest holders				(656)			656
Capital contributions from non-controlling interest holders							449	449
Balance (in shares) at Dec. 31, 2018		22,780
Balance at Dec. 31, 2018		$ 23	(7,932)	134,129	(42,513)		13,499	97,206
Net loss					(6,549)		(7)	(6,556)
Additional paid-in capital - share-based compensation				(216)				(216)
Distributions and distribution equivalents declared on common shares and restricted share units	[2]				(3,526)			(3,526)
Purchases of shares of common shares for treasury			(9,134)					(9,134)
Reissuance of shares of common shares from treasury			2,194	(112)				2,082
Common shares issued (in shares)		17
Common shares issued				93				93
Distributions to non-controlling interest holders							(977)	(977)
Derecognition of non-controlling interest due to deconsolidation							(12,842)	(12,842)
Unrealized loss on available-for-sale securities, net of tax						(4,769)		(4,769)
Balance (in shares) at Dec. 31, 2019		22,797
Balance at Dec. 31, 2019		$ 23	$ (14,872)	$ 133,894	$ (52,588)	$ (4,769)	$ (327)	$ 61,361

[1] $7.7 million of distributions were dividends paid to shareholders and $0.2 million of distributions were dividend equivalents paid on restricted share units

[2] $3.5 million of distributions were dividends paid to shareholders and $0.1 million of distributions were dividend equivalents paid on restricted share units