The maximum aggregate offering price of the equity distribution agreement.

No definition available.

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- Definition

Face amount or stated value per share of common stock.

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- Definition

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

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Per share or per unit amount of equity securities issued.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

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- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Note 7 - Common Stock (Details Textual) - USD ($)			3 Months Ended			6 Months Ended
Note 7 - Common Stock (Details Textual) - USD ($)	Feb. 12, 2021	Apr. 08, 2020	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Sep. 04, 2020
Stock Issued During Period, Value, New Issues					$ 4,922,000
Common Stock, Par or Stated Value Per Share (in dollars per share)			$ 0.0001			$ 0.0001	$ 0.0001	$ 0.0001
Private Placement [Member] \| Eshelman Ventures [Member]
Stock Issued During Period, Shares, New Issues (in shares)		931,098
Stock Issued During Period, Value, New Issues		$ 5,000,000.0
Payments of Stock Issuance Costs		$ 78,000
Direct Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	2,875,000
Stock Issued During Period, Value, New Issues	$ 20,900,000			$ 20,866,000
Shares Issued, Price Per Share (in dollars per share)	$ 7.29
At-the-market Offering [Member]
Stock Issued During Period, Value, New Issues			$ 1,816,000	$ 7,034,000
At-the-market Offering [Member] \| Piper Sandler & Co. and Cantor Fitzgerald & Co. [Member]
Stock Issued During Period, Shares, New Issues (in shares)			315,000			1,200,000
Stock Issued During Period, Value, New Issues			$ 1,800,000			$ 8,900,000
Equity Distribution Agreement, Maximum Aggregate Offering Price								$ 60,000,000