Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Property and equipment, accumulated depreciation	$ 61,223	$ 60,446
Other intangible assets, accumulated amortization		$ 1,308
12.5% Senior Secured Notes
Interest rate on Senior secured notes	12.50%	12.50%
Series B Preferred Stock
Cumulative exchangeable redeemable preferred stock dividend rate	10.75%	10.75%
Preferred stock par value per share	$ 0.01	$ 0.01
Preferred stock, liquidation value per share	$ 1,000	$ 1,000
Preferred stock, shares authorized	280,000	280,000
Preferred stock, shares issued	90,549	90,549
Preferred stock, shares outstanding	90,549	90,549
Preferred Stock, dividends outstanding	$ 87,200	$ 84,766
Series C convertible preferred stock
Convertible preferred stock, par value	$ 0.01	$ 0.01
Convertible preferred stock, liquidation value per share	$ 0.01	$ 0.01
Convertible preferred stock, shares authorized	600,000	600,000
Convertible preferred stock, shares issued	380,000	380,000
Convertible preferred stock, shares outstanding	380,000	380,000
Class A common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	4,241,991	4,241,991
Common stock, shares outstanding	4,241,991	4,241,991
Class B common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	2,340,353	2,340,353
Common stock, shares outstanding	2,340,353	2,340,353