Note 1 - Organization and Description of Business (Details Textual) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	May 09, 2023	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Net Income (Loss) Attributable to Parent		$ (6,270)	$ (116,902)	$ (66,857)	$ (175,987)
Net Cash Provided by (Used in) Operating Activities				(8,458)	(19,541)
Cash and Cash Equivalents, at Carrying Value		27,955	25,997	27,955	25,997
Retained Earnings (Accumulated Deficit)		(692,108)		(692,108)		$ (625,251)
Revenue from Contract with Customer, Excluding Assessed Tax		39,668	$ 66,326	109,811	$ 166,268
Restructuring Plan, Effected Employees	50
Restructuring Plan, Effected Contractors	15
Restructuring Charges		$ 400		$ 1,632		$ 0