The cash inflow before any costs from the issuance of common stock.

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=109259400&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

The cash inflow from the additional capital contribution to the entity.

+ 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 new stock issued during the period.

+ 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 http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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Note 14 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Mar. 24, 2021	Mar. 22, 2021	Mar. 05, 2020
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)							$ 0.01
Proceeds from Issuance of Common Stock			$ 14,767	$ 19,395
July 2020 ATM Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)		1,099,021
Proceeds from Issuance of Common Stock, Gross		$ 11,200
Proceeds from Issuance of Common Stock		$ 10,800
Subsequent Event [Member] \| July 2020 ATM Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	1,368,362
Proceeds from Issuance of Common Stock, Gross	$ 15,200
Proceeds from Issuance of Common Stock	$ 14,900
2017 Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)							362,500
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)							$ 6.75
2017 Warrants [Member] \| Subsequent Event [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)					362,500	362,500
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)					$ 0.01