Note 2 - Summary of Significant Accounting Policies - Allowance for Credit Loss (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Balance as of December 31, 2022	$ 984
Amounts accrued	309	$ 106
Write-offs charged against the allowance	(179)
Balance as of June 30, 2023	$ 1,114