Note 5 - Goodwill and Other Intangibles - Schedule of Goodwill (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($)
Balance at December 31, 2019	$ 39,951
Additions for acquisitions	59
Effects of currency exchange	(237)
Balance at March 31, 2020	$ 39,773

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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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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