Note 12 - Segment and Enterprise-wide Disclosures - Long-term Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Long-term Assets	$ 32,130	$ 31,102
UNITED STATES
Long-term Assets	28,402	27,660
FRANCE
Long-term Assets	1,038	1,140
GERMANY
Long-term Assets	781	1,138
Other Countries [Member]
Long-term Assets	$ 1,909	$ 1,164

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant