Note 17 - Geographic Information - Asset Information by Geographic Region (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Long-lived assets	$ 211,800	$ 224,713
UNITED STATES
Long-lived assets	76,605	80,048
TAIWAN
Long-lived assets	47,002	50,777
CHINA
Long-lived assets	$ 88,193	$ 93,888

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
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

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