Note 14 - Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Total		$ 195,320	$ 193,244
Liabilities		7,149	6,858
Warrant Liabilities [Member]
Liabilities	[1]	227	227
Company Earn-Outs [Member]
Liabilities	[1]		6,631
Fair Value, Inputs, Level 1 [Member]
Total		0	0
Liabilities		0	0
Fair Value, Inputs, Level 1 [Member] | Warrant Liabilities [Member]
Liabilities	[1]	0	0
Fair Value, Inputs, Level 1 [Member] | Company Earn-Outs [Member]
Liabilities	[1]		0
Fair Value, Inputs, Level 2 [Member]
Total		195,320	193,244
Liabilities		227	227
Fair Value, Inputs, Level 2 [Member] | Warrant Liabilities [Member]
Liabilities	[1]	227	227
Fair Value, Inputs, Level 2 [Member] | Company Earn-Outs [Member]
Liabilities	[1]		0
Fair Value, Inputs, Level 3 [Member]
Total		0	0
Liabilities		6,922	6,631
Fair Value, Inputs, Level 3 [Member] | Warrant Liabilities [Member]
Liabilities	[1]	0	0
Fair Value, Inputs, Level 3 [Member] | Company Earn-Outs [Member]
Liabilities	[1]		6,631
Certificates of Deposit [Member]
Cash Equivalents	[2]	1,707	1,693
Short term investments	[2]	2,879	2,620
Cash Equivalents	[2]	1,707	1,693
Certificates of deposit (1)	[2]		162
Certificates of Deposit [Member] | Fair Value, Inputs, Level 1 [Member]
Cash Equivalents	[2]	0	0
Short term investments	[2]	0	0
Cash Equivalents	[2]	0	0
Certificates of deposit (1)	[2]		0
Certificates of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
Cash Equivalents	[2]	1,707	1,693
Short term investments	[2]	2,879	2,620
Cash Equivalents	[2]	1,707	1,693
Certificates of deposit (1)	[2]		162
Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]
Cash Equivalents	[2]	0	0
Short term investments	[2]	0	0
Cash Equivalents	[2]	0	0
Certificates of deposit (1)	[2]		0
Money Market Funds [Member]
Cash Equivalents	[3]	190,734	188,769
Cash Equivalents	[3]	190,734	188,769
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Cash Equivalents	[3]	0	0
Cash Equivalents	[3]	0	0
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Cash Equivalents	[3]	190,734	188,769
Cash Equivalents	[3]	190,734	188,769
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Cash Equivalents	[3]	0	0
Cash Equivalents	[3]	0	$ 0
Company Earn-Outs [Member]
Liabilities	[1]	6,922
Company Earn-Outs [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities	[1]	0
Company Earn-Outs [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities	[1]	0
Company Earn-Outs [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities	[1]	$ 6,922

[1] Refer to “Note 11 — Earn-Out and Warrant Liabilities” for further details.

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

[3] Profits on securities for the three months ended March 31, 2023 and 2022 were $1.7 million and $0 million, respectively.