Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Series B Preferred [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2018		$ 1	$ 323,749		$ (318,576)	$ 5,174
Balance, shares at Dec. 31, 2018		1,107,607
Shares issued for: Common stock issuance, net of costs		$ 5	16,939			16,944
Shares issued for: Common stock issuance, net of costs, shares		4,243,390
Shares issued for: Convertible note originations shares			1,473			1,473
Shares issued for: Convertible note originations shares, shares		204,246
Deemed dividends			(135)			(135)
Equity-based compensation			649			649
Equity-based compensation, shares		1,932
Redeemable warrants			(2,787)			(2,787)
Shares issued to pay accounts payable			84			84
Shares issued to pay accounts payable , shares		25,459
Series B preferred shares issued, net of offering costs	$ 5,312					5,312
Series B preferred shares converted to common shares	(4,529)					(4,529)
Series B preferred shares converted to common shares, shares		514,659
Warrant modification
Net comprehensive loss					(8,341)	(8,341)
Balance at Sep. 30, 2019	$ 783	$ 6	339,972		(323,917)	13,844
Balance, shares at Sep. 30, 2019		6,097,293
Balance at Dec. 31, 2019	$ 778	$ 10	340,228		(328,109)	12,907
Balance, shares at Dec. 31, 2019		10,386,754
Shares issued for: Common stock issuance, net of costs		$ 31	58,035			58,066
Shares issued for: Common stock issuance, net of costs, shares		30,287,007
Equity-based compensation			596			596
Equity-based compensation, shares
Shares issued to pay accounts payable			20			20
Shares issued to pay accounts payable , shares		6,407
Series B preferred shares converted to common shares	$ (45)					(45)
Series B preferred shares converted to common shares, shares		5,114
Warrant modification			46			46
Net comprehensive loss				(12)	(10,466)	(10,478)
Balance at Sep. 30, 2020	$ 733	$ 41	$ 398,925	$ (12)	$ (338,575)	$ 61,112
Balance, shares at Sep. 30, 2020		40,685,282