CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current Assets:
Accounts receivable, net of allowance for doubtful accounts	$ 15	$ 15
Shareholders' deficit:
Preferred stock, shares authorized	4,000,000	4,000,000
Common stock, par value	$ .01	$ 0.01
Common stock, shares authorised	150,000,000	150,000,000
Common stock, shares issued	95,835,859	94,174,540
Common stock, shares outstanding	95,829,155	94,167,836
Treasury stock, shares	6,704	6,704
Series A Preferred Stock [Member]
Shareholders' deficit:
Preferred stock, Par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	31,021	31,021
Preferred stock, shares issued	30,571	31,021
Preferred stock, shares outstanding	30,571	31,021
Preferred stock, liquidation preference	$ 30,571	$ 31,021
Series B Preferred Stock [Member]
Shareholders' deficit:
Preferred stock, Par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	750,000	750,000
Preferred stock, shares issued	389,400	239,400
Preferred stock, shares outstanding	389,400	239,400
Preferred stock, liquidation preference	$ 620	$ 620