Condensed Consolidated Statements of Changes in Stockholders' (Deficit) Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Subscription Receivable [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2018		$ 111	$ 403,299		$ (404,719)	$ (1,309)
Balance, shares at Dec. 31, 2018		111,079,683
Stock based compensation			894			894
Stock based compensation, shares
Stock issued for services			60			60
Stock issued for services, shares		160,500
Sale of stock under equity purchase agreement		$ 43	2,111	(346)		1,808
Sale of stock under equity purchase agreement, shares		43,100,000
Cumulative effect adjustment related to ASU adoption					3	3
Net loss					(1,709)	(1,709)
Balance at Mar. 31, 2019		$ 154	406,364	(346)	(406,425)	(253)
Balance, shares at Mar. 31, 2019		154,340,183
Balance at Dec. 31, 2019		$ 414	417,315		(414,502)	3,227
Balance, shares at Dec. 31, 2019	115	413,701,289
Stock-based compensation - employee restricted stock			220			220
Stock-based compensation - employee restricted stock, shares
Common stock issued on conversion of note payable		$ 33	317			350
Common stock issued on conversion of note payable, shares		32,747,157
Net loss					(1,324)	(1,324)
Balance at Mar. 31, 2020		$ 447	$ 417,852		$ (415,826)	$ 2,473
Balance, shares at Mar. 31, 2020	115	446,448,446