Amount of transfers of assets and liabilities between Level 1, Level 2, and Level 3 of the fair value hierarchy.

No definition available.

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- Definition

The cash inflow from both the additional capital contribution to the entity and the issuance of rights to purchase common shares at predetermined price, net of issuance costs.

+ References

No definition available.

+ Details

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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 https://asc.fasb.org/extlink&oid=126973232&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

+ Details

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- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Value of preferred stock and warrants for common stock issued.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Details

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Note 3 - Fair Value Measurements (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Jan. 05, 2022	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Sep. 04, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Payments		$ 0
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.0001		$ 0.0001	$ 0.0001
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.0001
Common Stock, Shares, Issued (in shares)		24,279,573		21,039,594
Proceeds from Issuance of Common Stock and Warrants, Net of Issuance Costs		$ 19,168	$ 20,866
Fair Value, Assets and Liabilities, Transfers, Amount		$ 0		$ 0
January 2022 Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	4,545,455	4,545,455
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 2.20
Common Stock, Shares, Issued (in shares)				10,000,000
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants	$ 10,000
January 2022 Warrants [Member] \| Direct Offering [Member]
Proceeds from Issuance of Common Stock and Warrants, Net of Issuance Costs	$ 9,900