Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 10
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The cash inflow from the additional capital contribution to the entity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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Value of preferred stock and warrants for common stock issued.

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Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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Stockholders' Equity, Rights Offering (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	May 23, 2019 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) shares	May 31, 2019 shares
Stockholders' Equity [Abstract]
Net proceeds from issuance of common stock \| $		$ 6,814	$ 263
Issuance of common stock (in shares)		59,341,305	57,077,055
Warrants exercised (in shares)				500,000
Exercise price of warrant (in dollars per share) \| $ / shares	$ 7.00
Issuance of warrants \| $	$ 8,200
Share price (in dollars per share) \| $ / shares		$ 2.07
Term [Member]
Stockholders' Equity [Abstract]
Warrants and rights outstanding, measurement input	7
Volatility [Member]
Stockholders' Equity [Abstract]
Warrants and rights outstanding, measurement input	1.01
Risk Free Interest Rate [Member]
Stockholders' Equity [Abstract]
Warrants and rights outstanding, measurement input	0.0233
Common Stock [Member]
Stockholders' Equity [Abstract]
Net proceeds from issuance of common stock \| $	$ 44,900
Issuance of common stock (in shares)	10,488,161
Warrants exercised (in shares)	2,622,154
Warrants [Member]
Stockholders' Equity [Abstract]
Share price (in dollars per share) \| $ / shares	$ 4.01