Common Stock Issued In Lieu Of Board Fees

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- Definition

Number of common shares held by the related party representing the voting power.

+ References

No definition available.

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- Definition

Percentage of beneficial ownership under equity method investment.

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- Definition

Shares issued on exercise of warrants during period.

+ References

No definition available.

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- Definition

Number of warrants (or share units) exercised during the current period.

+ References

No definition available.

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- Definition

Value of stock purchased by board.

+ References

No definition available.

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- 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=123467817&loc=d3e21475-112644

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- 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

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- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

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- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

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- Definition

Line items represent financial 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.

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Related Party Transactions - Overview of Related Parties (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	Apr. 30, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Related Party Transactions
Number of Shares		8,732,230		8,732,230
Common stock issued in lieu of board fees		41,155	47,400
Directors [Member]
Related Party Transactions
Ownership percentage		4.00%			12.00%
Aggregate common shares					4,608,786
Maximum [Member]
Related Party Transactions
Proceeds from issuance of common stock in lieu of director board and committee fees		$ 0.1	$ 0.1
Series B1 Redeemable Convertible Preferred Stock
Related Party Transactions
Conversion of preferred stock to common, shares			14,000	23,684
Baker Bros. Advisors LP [Member]
Related Party Transactions
Ownership percentage		4.00%
Issuance of common stock upon exercise of warrants (in shares)			2,708,812
Exercise price of warrants			$ 0.08
Proceeds from exercise of warrants			$ 0.2
Aggregate common shares		2,047,180
Baker Bros. Advisors LP [Member] \| Series B1 Redeemable Convertible Preferred Stock
Related Party Transactions
Aggregate common shares	9,534
Conversion of preferred stock to common, shares			14,150
Baker Bros. Advisors LP [Member] \| Common stock
Related Party Transactions
Shares issued on exercise of warrants during the period	953,400		1,415,000
Pillar Investment Entities
Related Party Transactions
Ownership percentage		19.99%
Issuance of common stock upon exercise of warrants (in shares)			643,525
Exercise price of warrants			$ 0.01
Equity method investment beneficial ownership percentage		16.00%
Pillar Investment Entities \| Maximum [Member]
Related Party Transactions
Proceeds from exercise of warrants			$ 0.1
Pillar Investment Entities \| Warrant, Tranche One
Related Party Transactions
Exercise price of warrants		$ 2.28
Number of Shares		3,039,514
Pillar Investment Entities \| Warrant, Tranche Two
Related Party Transactions
Exercise price of warrants		$ 2.58
Number of Shares		2,764,227
Pillar Investment Entities \| Warrant, Tranche Three
Related Party Transactions
Exercise price of warrants		$ 2.71
Number of Shares		1,373,626
Pillar Investment Entities \| Pre Funded Warrant, Tranche One
Related Party Transactions
Exercise price of warrants		$ 0.01
Number of Shares		1,533,159