Note 17 - Subsequent Events	12 Months Ended
Dec. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	17. SUBSEQUENT EVENTS Acquisition In January 2024, the Company completed the acquisition of Axign in a cash transaction in exchange for all outstanding Axign shares. Axign is a Dutch company that designs and develops class-D audio ICs, targeting applications ranging from portable consumer speakers to automotive and professional-grade multi-speaker systems. The preliminary total purchase consideration was approximately $33.8 million. The initial accounting for the acquisition, including the valuation of assets acquired and liabilities assumed, is still ongoing as of the date this Annual Report on Form 10-K is issued. *Cash Dividend Increase* In February 2024, the Board of Directors approved an increase in quarterly cash dividends from $1.00 per share to $1.25 per share.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration