Unaudited Condensed Consolidated Statement of Stockholders' Equity - 6 months ended Jun. 30, 2018 - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2017	18,079,522	1,826,096
Balance at Dec. 31, 2017	$ 181	$ (6,286)	$ 714,889	$ (679,535)	$ 29,249	$ 6,562	$ 35,811
Net loss				(6,176)	(6,176)	(115)	(6,291)
Contributions from Hotel Fund investors						4,820	4,820
Distributions to Hotel Fund investors						(100)	(100)
Contribution of Hotel Fund capital costs			(87)		(87)		(87)
Issuance of common stock warrants			688		688		688
Cash dividends on redeemable convertible preferred stock			(1,239)		(1,239)		(1,239)
Deemed dividends on redeemable convertible preferred stock			(1,731)		(1,731)		(1,731)
Cash dividends on perpetual preferred stock			(142)		(142)		$ (142)
Transfer of class C common stock to treasury (in shares)		44,068					44,068
Stock-based compensation (in shares)	517,252
Stock-based compensation	$ 4		174		178		$ 178
Balance (in shares) at Jun. 30, 2018	18,596,774	1,870,164
Balance at Jun. 30, 2018	$ 185	$ (6,286)	$ 712,552	$ (685,711)	$ 20,740	$ 11,167	$ 31,907