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Per share or per unit amount of equity securities issued.

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STOCKHOLDERS’ EQUITY AND ADDITIONAL PAID-IN CAPITAL (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands							1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Aug. 11, 2020	Jul. 21, 2020	Apr. 24, 2020	Mar. 06, 2020	Jun. 17, 2019	Feb. 20, 2019	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	May 22, 2020	Apr. 30, 2020
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage					25.00%
Share-based compensation arrangement by share-based payment award, shares issued in period					95,312
Stock Issued During Period, Shares, New Issues							80,500,000
Shares Issued, Price Per Share							$ 0.50
Proceeds from Issuance of Common Stock							$ 40,250			$ 122,185	$ 40,250
Payments of Stock Issuance Costs							$ 2,835			5,612	$ 2,835
Stock Issued During Period, Value, Stock Options Exercised										$ 1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term										6 years 11 months 23 days	6 years 9 months 21 days
Intrinsic value of outstanding options								$ 9,314	$ 9,314	$ 9,314
Intrinsic value of vested options								4,085	4,085	4,085
Intrinsic value of expected to vested options								5,229	5,229	5,229
Unrecognized compensation								$ 8,847	$ 8,847	$ 8,847
Weighted average period of unrecognized compensation										2 years 3 days
National Warrants [Member]
Subsidiary, Sale of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights								201,158	201,158	201,158
Class of Warrant or Right, Exercise Price of Warrants or Rights								$ 1.50	$ 1.50	$ 1.50
Proceeds from Issuance of Warrants								$ 302
Jefferies LLC [Member] \| Open Market Sale Agreement [Member]
Subsidiary, Sale of Stock [Line Items]
Stock Issued During Period, Shares, New Issues									15,638,706
Proceeds from Issuance of Common Stock									$ 64,685
Payments of Stock Issuance Costs									$ 2,101
Average price per share								$ 4.14	$ 4.14	$ 4.14
Share-based Payment Arrangement, Option [Member]
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	750									750
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 1.64
Stock Issued During Period, Value, Stock Options Exercised	$ 1
Intrinsic value of exercised options										$ 2
Restricted Stock Units (RSUs) [Member]
Subsidiary, Sale of Stock [Line Items]
Fair value of vested units										$ 389
Warrant [Member]
Subsidiary, Sale of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		550,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 3.34
Proceeds from Issuance of Warrants		$ 1,837
National Warrants [Member]
Subsidiary, Sale of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights								201,158	201,158	201,158
Class of Warrant or Right, Exercise Price of Warrants or Rights								$ 1.50	$ 1.50	$ 1.50			$ 1.50
Proceeds from Issuance of Warrants								$ 302
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right													705,000
K2 Warrant [Member] \| K2 Healthventures LLC [Member] \| Loan and Guaranty Agreement [Member]
Subsidiary, Sale of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights												$ 1.12
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right												625,000
Warrants and Rights Outstanding, Maturity Date												May 22, 2030
Underwritten Public Offering [Member]
Subsidiary, Sale of Stock [Line Items]
Shares Issued, Price Per Share			$ 1.10
Proceeds from Issuance of Common Stock			$ 57,500
Payments of Stock Issuance Costs			$ 3,606
Stock Issued During Period, Shares, Other			52,272,726
2016 Plan [Member]
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross						140,000
Stock Issued During Period, Shares, Issued for Services						35,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage										25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate								5.00%	5.00%	5.00%
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum										10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant								10,731,577	10,731,577	10,731,577
[custom:PercentageOfExercisePriceOnMarketPrice-0]								100.00%	100.00%	100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period										10 years
2016 Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number								129,356	129,356	129,356
2016 Plan [Member] \| SciVac Employees [Member]
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				118,471		143,110
2006 Plan [Member]
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number								990,449	990,449	990,449
2014 Plan [Member]
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number								521,242	521,242	521,242
2016 VBI Equity Incentive Plan [Member]
Subsidiary, Sale of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number								10,995,850	10,995,850	10,995,850