Note 16 - Commitments and Contingencies - Allowance of Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Balance at beginning of period	$ 17	$ 47
Bad debt expense	14	0
Write-offs	0	(23)
Balance at end of period	$ 31	$ 24