Note 1 - Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Balance at Beginning of Period	$ 75	$ 65	$ 94
Bad Debt Expense	(76)	99	19
Write-offs	10	99	50
Recoveries	51	10	2
Balance at End of Period	$ 40	$ 75	$ 65