Note 15 - Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2022	Dec. 31, 2021
Total		$ 203,263	$ 204,128
Liabilities		5,049	10,470
Company Earn-Outs [Member]
Liabilities	[1]		10,012
Warrant Liabilities [Member]
Liabilities	[1]	279	458
Fair Value, Inputs, Level 1 [Member]
Total		0	0
Liabilities		0	0
Fair Value, Inputs, Level 1 [Member] | Company Earn-Outs [Member]
Liabilities	[1]		0
Fair Value, Inputs, Level 1 [Member] | Warrant Liabilities [Member]
Liabilities	[1]	0	0
Fair Value, Inputs, Level 2 [Member]
Total		203,263	204,128
Liabilities		279	458
Fair Value, Inputs, Level 2 [Member] | Company Earn-Outs [Member]
Liabilities	[1]		0
Fair Value, Inputs, Level 2 [Member] | Warrant Liabilities [Member]
Liabilities	[1]	279	458
Fair Value, Inputs, Level 3 [Member]
Total		0	0
Liabilities		4,770	10,012
Fair Value, Inputs, Level 3 [Member] | Company Earn-Outs [Member]
Liabilities	[1]		10,012
Fair Value, Inputs, Level 3 [Member] | Warrant Liabilities [Member]
Liabilities	[1]	0	0
US Treasury Securities [Member]
Cash Equivalents		19,992	199,999
Short term investments		179,933
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Cash Equivalents		0	0
Short term investments		0
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Cash Equivalents		19,992	199,999
Short term investments		179,933
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Cash Equivalents		0	0
Short term investments		0
Certificates of Deposit [Member]
Cash Equivalents		1,726	1,433
Short term investments		1,612	2,411
Certificate of deposits			285
Certificates of Deposit [Member] | Fair Value, Inputs, Level 1 [Member]
Cash Equivalents		0	0
Short term investments		0	0
Certificate of deposits			0
Certificates of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
Cash Equivalents		1,726	1,433
Short term investments		1,612	2,411
Certificate of deposits			285
Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]
Cash Equivalents		0	0
Short term investments		0	0
Certificate of deposits			$ 0
Company Earn-Outs [Member]
Liabilities	[1]	4,770
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]	$ 4,770

[1] As a result of the Apex Business Combination on July 1, 2021, the Company recorded Company Earn-Out Shares and private placement warrants as liabilities and measured at fair value each reporting period. The Company measured the Company Earn-Out Shares at fair value determined at Level 3. The Company measured the private placement warrants at fair value determined at Level 2. Refer to “Note 12 — Earn-Out and Warrant Liabilities” for further details.