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Note 5 - Goodwill (Details Textual) $ in Thousands	12 Months Ended
Note 5 - Goodwill (Details Textual) $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2021 USD ($)
Goodwill, Ending Balance	$ 2,791		$ 2,791
Goodwill, Impairment Loss	$ 0
Series of Individually Immaterial Business Acquisitions [Member]
Number of Businesses Acquired		3
Business Combination, Consideration Transferred, Total		$ 5,500
Goodwill, Ending Balance		$ 2,800

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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