Note 15 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

Fair Value, by Balance Sheet Grouping [Table Text Block]

	June 30, 2025
	(in thousands)
	Level 1		Level 2		Level 3		Total
Assets
Cash Equivalents:
Certificates of deposit (1)	$	—	$	1,692	$	—	$	1,692
Money market funds		—		4,167		—		4,167
U.S. treasury bills		—		185,119		—		185,119
Short-term investments:
Certificates of deposit (1)		—		338		—		338
Other assets:
Certificates of deposit (1)		—		206		—		206
Notes receivables (2)		—		—		4,304		4,304
Total	$	—	$	191,522	$	4,304	$	195,826
Liabilities:
Accrued expenses and other current liabilities:
Mandatorily redeemable noncontrolling interest (3)	$	—	$	—	$	6,903	$	6,903
Total	$	—	$	—	$	6,903	$	6,903

	December 31, 2024
	(in thousands)
	Level 1		Level 2		Level 3		Total
Assets
Cash Equivalents:
Certificates of deposit (1)	$	—	$	1,504	$	—	$	1,504
Money market funds		—		4,188		—		4,188
U.S. treasury bills		—		181,210		—		181,210
Short-term investments:
Certificates of deposit (1)		—		165		—		165
Other assets:
Certificates of deposit (1)		—		39		—		39
Notes receivables (2)		—		—		3,938		3,938
Total	$	—	$	187,106	$	3,938	$	191,044
Liabilities:
Other liabilities:
Warrant liabilities (4)	$	—	$	1,861	$	—	$	1,861
Total	$	—	$	1,861	$	—	$	1,861

Debt Securities, Available-for-Sale [Table Text Block]

	June 30, 2025
	(in thousands)
	Amortized Cost		Fair Value		Gross Unrealized Losses
U.S. treasury bills	$	185,143	$	185,119	$	(24	)
Total	$	185,143	$	185,119	$	(24	)

	December 31, 2024
	(in thousands)
	Amortized Cost		Fair Value		Gross Unrealized Losses
U.S. treasury bills	$	181,217	$	181,210	$	(7	)
Total	$	181,217	$	181,210	$	(7	)