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, 2018		$ 111	403,299		(404,719)	(1,309)
Balance, shares at Dec. 31, 2018		111,079,683
Net loss						(7,584)
Balance at Sep. 30, 2019		$ 351	416,262		(413,303)	3,310
Balance, shares at Sep. 30, 2019	115	351,390,511
Balance at Mar. 31, 2019		$ 154	406,364	(346)	(406,425)	(253)
Balance, shares at Mar. 31, 2019		154,340,183
Sale of stock under equity purchase agreement		$ 24	1,502	346		1,872
Sale of stock under equity purchase agreement, shares		23,900,000
Stock based compensation - employee restricted stock			730			730
Stock based compensation - employee restricted stock, shares
Common stock issued on conversion of note payable		$ 57	1,640			1,697
Common stock issued on conversion of note payable, shares		57,224,243
Stock sold in connection with registered direct placements		$ 18	507			525
Stock sold in connection with registered direct placements, shares		17,500,000
Sale of preferred stock			1,890			1,890
Sale of preferred stock, shares	190
Conversion of preferred stock		$ 14	(14)
Conversion of preferred stock, shares	(50)	14,077,092
Cancellation of shares received from transfer agent
Cancellation of shares received from transfer agent, shares		(83,752)
Exercise of warrants		$ 4	116			120
Exercise of warrants, shares		4,000,000
Deemed dividend			959		(959)
Net loss					(3,619)	(3,619)
Balance at Jun. 30, 2019		$ 271	413,694		(411,003)	2,962
Balance, shares at Jun. 30, 2019	140	270,957,766
Sale of stock under equity purchase agreement		$ 40	1,402			1,442
Sale of stock under equity purchase agreement, shares		40,000,000
Stock based compensation - employee restricted stock			312			312
Stock based compensation - employee restricted stock, shares
Common stock issued on conversion of note payable		$ 16	434			450
Common stock issued on conversion of note payable, shares		16,654,170
Sale of preferred stock			100			100
Sale of preferred stock, shares	10
Conversion of preferred stock		$ 14	(14)
Conversion of preferred stock, shares	(35)	13,528,575
Issuance of common stock for mining assets		$ 10	302			312
Issuance of common stock for mining assets, shares		10,250,000
Warrant buy-back and cancellation			(14)			(14)
Deemed dividend			46		(46)
Net loss					(2,254)	(2,254)
Balance at Sep. 30, 2019		$ 351	416,262		(413,303)	3,310
Balance, shares at Sep. 30, 2019	115	351,390,511
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
Balance at Dec. 31, 2019		$ 414	417,315		(414,502)	3,227
Balance, shares at Dec. 31, 2019	115	413,701,289
Net loss						(3,332)
Balance at Sep. 30, 2020		$ 507	418,374		(417,834)	1,047
Balance, shares at Sep. 30, 2020	115	506,779,781
Balance at Mar. 31, 2020		$ 447	417,852		(415,826)	2,473
Balance, shares at Mar. 31, 2020	115	446,448,446
Stock based compensation - employee restricted stock			2			2
Stock based compensation - employee restricted stock, shares
Common stock issued on conversion of note payable		$ 43	382			425
Common stock issued on conversion of note payable, shares		43,166,603
Net loss					(1,416)	(1,416)
Balance at Jun. 30, 2020		$ 490	418,236		(417,242)	1,484
Balance, shares at Jun. 30, 2020	115	489,615,049
Stock based compensation - employee restricted stock			1			1
Stock based compensation - employee restricted stock, shares
Common stock issued on conversion of note payable		$ 17	137			154
Common stock issued on conversion of note payable, shares		17,164,732
Net loss					(592)	(592)
Balance at Sep. 30, 2020		$ 507	$ 418,374		$ (417,834)	$ 1,047
Balance, shares at Sep. 30, 2020	115	506,779,781