Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2019	$ 27	$ 56,027	$ (56,061)	$ (7)
Common Stock, Shares, Outstanding, Beginning Balance at Dec. 31, 2019	27,028,533
Stock-based compensation expense		652		652
[custom:IssuanceOfCommonStockForPrepaidServices]		330		330
Issuance of common stock for license acquired	$ 2	2,441		2,443
Issuance of common stock for license acquired, shares	1,809,845
Issuance of common stock, net of issuance costs	$ 15	8,835		8,850
Net Income (Loss) Attributable to Parent			(8,561)	(8,561)
Issuance of common stock, net of issuance costs, shares	15,166,666
Net loss			(8,561)	(8,561)
Ending balance, value at Jun. 30, 2020	$ 44	68,285	(64,622)	3,707
Common Stock, Shares, Outstanding, Ending Balance at Jun. 30, 2020	44,405,044
Issuance of common stock for prepaid services		330		330
Issuance of common stock for prepaid services, shares	400,000
Beginning balance, value at Mar. 31, 2020	$ 44	67,614	(60,893)	6,765
Common Stock, Shares, Outstanding, Beginning Balance at Mar. 31, 2020	44,005,044
Stock-based compensation expense		341		341
[custom:IssuanceOfCommonStockForPrepaidServices]		330		330
Net Income (Loss) Attributable to Parent			(3,729)	(3,729)
Net loss			(3,729)	(3,729)
Ending balance, value at Jun. 30, 2020	$ 44	68,285	(64,622)	3,707
Common Stock, Shares, Outstanding, Ending Balance at Jun. 30, 2020	44,405,044
Issuance of common stock for prepaid services		330		330
Issuance of common stock for prepaid services, shares	400,000
Beginning balance, value at Dec. 31, 2020	$ 54	77,680	(75,162)	$ 2,572
Common Stock, Shares, Outstanding, Beginning Balance at Dec. 31, 2020	54,535,891			54,535,891
Stock-based compensation expense		1,742		$ 1,742
Issuance of common stock, ESPP, shares	40,518			40,518
Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments	$ 7	8,401		$ 8,408
Issuance of common stock, ESPP		30		30
Warrants exercised for cash, shares	7,431,125
Issuance of common stock for conversion of debt, shares	25,401
Issuance of common stock for extinguishment of debt, shares	406,250
Issuance of common stock, options exercised		65		65
Issuance of common stock for conversion of debt		40		40
Issuance of common stock, options exercised, shares	43,805
Extinguishment of beneficial conversion feature		(1,519)		(1,519)
Issuance of common stock for settlement of debt	1	1,376		1,377
Stock Issued During Period, Value, Employee Stock Ownership Plan		30		30
Warrants exercised for cash	7	8,401		8,408
Issuance of common stock, net of issuance costs	40	97,917		97,957
Net Income (Loss) Attributable to Parent			(27,974)	(27,974)
Issuance of common stock, net of issuance costs, shares	39,788,554
Net loss			(27,974)	(27,974)
Ending balance, value at Jun. 30, 2021	$ 102	185,732	(103,136)	$ 82,698
Common Stock, Shares, Outstanding, Ending Balance at Jun. 30, 2021	102,271,544			102,271,544
Beginning balance, value at Mar. 31, 2021	$ 78	118,960	(94,278)	$ 24,760
Common Stock, Shares, Outstanding, Beginning Balance at Mar. 31, 2021	78,283,021
Stock-based compensation expense		1,037		1,037
Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments	$ 1	1,384		1,385
Warrants exercised for cash, shares	1,285,000
Issuance of common stock for conversion of debt, shares	25,401
Issuance of common stock for extinguishment of debt, shares	406,250
Issuance of common stock, options exercised
Issuance of common stock for conversion of debt		40		40
Issuance of common stock, options exercised, shares	13,806
Extinguishment of beneficial conversion feature		(1,519)		(1,519)
Issuance of common stock for settlement of debt	1	1,376		1,377
Warrants exercised for cash	1	1,384		1,385
Issuance of common stock, net of issuance costs	22	64,454		64,476
Net Income (Loss) Attributable to Parent			(8,858)	(8,858)
Issuance of common stock, net of issuance costs, shares	22,258,066
Net loss			(8,858)	(8,858)
Ending balance, value at Jun. 30, 2021	$ 102	$ 185,732	$ (103,136)	$ 82,698
Common Stock, Shares, Outstanding, Ending Balance at Jun. 30, 2021	102,271,544			102,271,544