Note 5 - Leases (Details Textual) $ / shares in Units, $ in Thousands		1 Months Ended			9 Months Ended		12 Months Ended
	Apr. 28, 2025 USD ($) $ / shares shares	May 30, 2025 USD ($)	Aug. 31, 2024 USD ($)	Jul. 31, 2024	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Number of Leases Entered				2
Operating Lease Liabilities Extinguished Upon Early Lease Termination			$ 1		$ 0	$ 16,325
Gain (Loss) on Termination of Lease, Net							$ 491
Gain (Loss) on Termination of Lease					1,014	$ 680	5,954
Termination of Lease, Reduction of Liability							16,325
Termination of Lease, Reduction of Right-of-use Asset							10,371
Loss on Termination of Lease, Unpaid Rent							(5,463)
Lease Termination Liability, Reduction From Draw-down of Collateral			$ 2,150
Lease Termination Liability					$ 0		$ 3,313
Alleged Breach in Lease [Member] | Settled Litigation [Member]
Litigation Settlement, Amount Awarded to Other Party	$ 1,400	$ 1,400
Alleged Breach in Lease [Member] | Settled Litigation [Member] | Warrants Issued for Early Termination of the Lease [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares	350,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares	$ 2.22
Warrants and Rights Outstanding	$ 899
Headquarters [Member]
Number of Leases Entered				1