Note 16 - Segment Information - Long-lived Assets by Geographical Area (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property and Equipment	$ 2,958	$ 2,688
UNITED STATES
Property and Equipment	2,566	2,346
Non-US [Member]
Property and Equipment	$ 392	$ 342

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 360
-Section 50
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant