Note 10 - Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance	$ 27,537	$ 27,215
Acquisitions	0	0
Impairment	0	0	$ 0
Foreign currency	(294)	322
Balance	$ 27,243	$ 27,537	$ 27,215

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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