v3.21.2

Stockholders' Equity - Warrants Narrative (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares
Placement Agent Agreement
Warrants [Line Items]
Cash fees paid | $	$ 2,154
Palladium Warrants
Warrants [Line Items]
Warrants to purchase shares of common stock	325,500
Warrant exercise price | $ / shares	$ 1.70
Palladium Warrants | Placement Agent Agreement
Warrants [Line Items]
Warrants to purchase shares of common stock	325,500
Warrant exercise price | $ / shares	$ 1.70
H.C.W. Warrants
Warrants [Line Items]
Warrants to purchase shares of common stock	842,588
Cash fees paid | $	$ 2,154
Warrant exercise price | $ / shares	$ 2.125
H.C.W. Warrants | Placement Agent Agreement
Warrants [Line Items]
Warrants to purchase shares of common stock	842,588
Warrant exercise price | $ / shares	$ 2.125
December 2020 Warrants
Warrants [Line Items]
Total of warrants exercised	11,223,529
Gross proceeds | $	$ 19,161

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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X

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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- Definition

Number of stock issued during the period for warrants exercised.

+ References

No definition available.

+ Details

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- Definition

Line items represent reporting concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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