Note 4 - Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating lease expense	$ 287	$ 283	$ 849	$ 882
Financing lease expense	8	8	24	24
Short Term lease expense	3	34	9	55
Total lease expense	$ 298	$ 325	$ 882	$ 961