Note 16 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

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

	Year Ended December 31,
	2023
	(in thousands)
	Level 1		Level 2		Level 3		Total
Assets
Cash Equivalents:
Certificates of deposit (1)	$	—	$	1,533	$	—	$	1,533
Money market funds		—		4,423		—		4,423
U.S. treasury bills		—		171,841		—		171,841
Short term investments:
Certificates of deposit (1)		—		3,721		—		3,721
Other assets:
Notes receivables (3)		—		—		1,840		1,840
Total	$	—	$	181,518	$	1,840	$	183,358
Liabilities:
Earn-out shares liabilities:
Earn-out shares (2)	$	—	$	—	$	18,346	$	18,346
Other non-current liabilities:
Warrant liabilities (2)		—		533		—		533
Total	$	—	$	533	$	18,346	$	18,879

	Year Ended December 31,
	2022
	(in thousands)
	Level 1		Level 2		Level 3		Total
Assets
Cash Equivalents:
Certificates of deposit (1)	$	—	$	1,693	$	—	$	1,693
Money market funds		—		188,769		—		188,769
Short term investments:
Certificates of deposit (1)		—		2,620		—		2,620
Other assets:
Certificates of deposit (1)		—		162		—		162
Total	$	—	$	193,244	$	—	$	193,244
Liabilities:
Earn-out shares liabilities:
Earn-out shares (2)	$	—	$	—	$	6,631	$	6,631
Other non-current liabilities:
Warrant liabilities (2)		—		227		—		227
Total	$	—	$	227	$	6,631	$	6,858

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

	Year Ended December 31,
	2023
	(in thousands)
	Amortized Cost		Fair Value		Gross unrealized gains		Gross unrealized losses
U.S. treasury bills	$	171,815	$	171,841	$	26	$	—
Total	$	171,815	$	171,841	$	26	$	—

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

	Year Ended December 31,
	2023
	(in thousands)
Opening balance	$	6,631
Total gains or losses from the period
Included in other (expense) income, net		11,148
Reclass from Earnout-RSU		567
Closing balance	$	18,346