Note 15 - Fair Value Measurements - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Total		$ 193,580	$ 191,044
Liabilities		5,679	1,861
Unconditional Purchase Obligation [Member]
Liabilities	[1]	5,679
Warrant Liabilities [Member]
Liabilities	[2]		1,861
Fair Value, Inputs, Level 1 [Member]
Total		0	0
Liabilities		0	0
Fair Value, Inputs, Level 1 [Member] | Unconditional Purchase Obligation [Member]
Liabilities	[1]	0
Fair Value, Inputs, Level 1 [Member] | Warrant Liabilities [Member]
Liabilities	[2]		0
Fair Value, Inputs, Level 2 [Member]
Total		193,580	187,106
Liabilities		0	1,861
Fair Value, Inputs, Level 2 [Member] | Unconditional Purchase Obligation [Member]
Liabilities	[1]	0
Fair Value, Inputs, Level 2 [Member] | Warrant Liabilities [Member]
Liabilities	[2]		1,861
Fair Value, Inputs, Level 3 [Member]
Total		0	3,938
Liabilities		5,679	0
Fair Value, Inputs, Level 3 [Member] | Unconditional Purchase Obligation [Member]
Liabilities	[1]	5,679
Fair Value, Inputs, Level 3 [Member] | Warrant Liabilities [Member]
Liabilities	[2]		0
Certificates of Deposit [Member]
Cash Equivalents	[3]	1,704	1,504
Short term investments	[3]	339	165
Other assets	[3]	206	39
Certificates of Deposit [Member] | Fair Value, Inputs, Level 1 [Member]
Cash Equivalents	[3]	0	0
Short term investments	[3]	0	0
Other assets	[3]	0	0
Certificates of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
Cash Equivalents	[3]	1,704	1,504
Short term investments	[3]	339	165
Other assets	[3]	206	39
Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]
Cash Equivalents	[3]	0	0
Short term investments	[3]	0	0
Other assets	[3]	0	0
Money Market Funds [Member]
Cash Equivalents		4,204	4,188
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Cash Equivalents		0	0
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Cash Equivalents		4,204	4,188
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Cash Equivalents		0	0
US Treasury Securities [Member]
Cash Equivalents		187,127	181,210
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Cash Equivalents		0	0
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Cash Equivalents		187,127	181,210
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Cash Equivalents		$ 0	0
Notes Receivable [Member]
Notes receivables	[4]		3,938
Notes Receivable [Member] | Fair Value, Inputs, Level 1 [Member]
Notes receivables	[4]		0
Notes Receivable [Member] | Fair Value, Inputs, Level 2 [Member]
Notes receivables	[4]		0
Notes Receivable [Member] | Fair Value, Inputs, Level 3 [Member]
Notes receivables	[4]		$ 3,938

[1] The fair value of mandatorily redeemable noncontrolling interest is based on discounted redemption value using risk-free rates offered for similar financing with the same remaining maturities.

[2] Refer to “Note 11 — Warrant Liabilities” for further details.

[3] The majority of certificates of deposit are foreign deposits.

[4] During 2023, the Company extended a credit facility to LCP with a total commitment of up to $5.0 million and maturities of greater than twelve months (the “LCP Notes Receivable”). Refer to “Note 13 — Growth Equity Fund” for further details. The LCP Notes Receivable bear interest at an annual rate equal to 8%. As of September 30, 2025 and December 31, 2024, the LCP Notes Receivable in the amounts of $0.0 million and $3.8 million, respectively, were included in other assets within the condensed consolidated balance sheets. Fair values are based on discounted future cash flows using current interest rates offered for similar notes to third parties with similar credit ratings for the same remaining maturities. The change of 1% of the current interest rate will change the fair value by $0.3 million.