v3.22.2.2

Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) $ / shares in Units, $ in Thousands				1 Months Ended	9 Months Ended		78 Months Ended
	Oct. 25, 2022 $ / shares	Sep. 23, 2022	May 31, 2022 USD ($)	May 31, 2022	Sep. 30, 2022 USD ($) $ / shares	Sep. 30, 2021 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 $ / shares
Consideration Paid for Termination of Royalty Monetization			$ 100		$ 100		$ 100
Gain on Termination of Liability Related to Sale of Future Royalties			$ 84,100		$ 84,152	$ (0)
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares					$ 0.001			$ 0.001
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent				40.00%
Severance Costs					$ 500
Subsequent Event [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares	$ 0.001
Reverse Stock Split [Member] | Subsequent Event [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	20
Reverse Stock Split [Member] | Maximum [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio		30

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Face amount or stated value per share of common stock.

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-Publisher FASB
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-Topic 210
-SubTopic 10
-Section S99
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