Note 8 - Accrued Expenses (Details Textual) $ in Thousands			1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 01, 2024 USD ($)	Nov. 07, 2022 USD ($)	Jan. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Interest Expense				$ 3,339	$ 2,947	$ 9,976	$ 8,313
Eshelman v. Puma Biotechnology, Inc. [Member]
Payments for Legal Settlements			$ 8,000			7,600
Interest Expense						$ 8,000
Litigation Settlement, Amount Awarded to Other Party		$ 16,000
Legal Settlements Payments, Number of Installments		2
Eshelman v. Puma Biotechnology, Inc. [Member] | Forecast [Member]
Payments for Legal Settlements	$ 8,000