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Note 18 - Revenues - Changes in Deferred Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Balance	$ 3,820	$ 505
Deferral of revenue	3,247	5,515
Recognition of deferred revenue	(3,127)	(5,161)
Effect of foreign currency translation	9	(15)
Balance	3,949	3,820
Addition due to business combination		2,976
Service [Member]
Balance	1,659	505
Deferral of revenue	2,152	4,305
Recognition of deferred revenue	(2,233)	(3,984)
Effect of foreign currency translation	9	(15)
Balance	1,587	1,659
Addition due to business combination		848
Customer Advances [Member]
Balance	2,161
Deferral of revenue	1,095	1,210
Recognition of deferred revenue	(894)	(1,177)
Effect of foreign currency translation
Balance	$ 2,362	2,161
Addition due to business combination		$ 2,128

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- Definition

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+ References

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-Publisher FASB
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-Topic 606
-SubTopic 10
-Section 45
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