Note 5 - Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Operating lease assets	$ 8,079	$ 8,983	[1]
Total leased assets	9,584	11,035
Property and Equipment [Member]
Finance lease assets	$ 1,505	$ 2,052

[1] The condensed consolidated balance sheet at December 31, 2021 has been derived from the audited financial statements at that date