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Note 5 - Shareholders' Equity and Stock-based Compensation - Schedule of Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.035	$ 0.035	$ 0.031	$ 0.031	$ 0.07	$ 0.062
O 2026 Q1 Dividends [Member]
Dividends Payable, Date to be Paid		Mar. 20, 2026
Dividend Declaration Date		Feb. 23, 2026
Common Stock, Dividends, Per Share, Declared (in dollars per share)		$ 0.035
Dividends Payable, Date of Record		Mar. 09, 2026
Cash Outlay		$ 1,028
O 2026 Q2 Dividends [Member]
Dividends Payable, Date to be Paid	May 29, 2026
Dividend Declaration Date	May 04, 2026
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.035
Dividends Payable, Date of Record	May 18, 2026
Cash Outlay	$ 1,027				$ 1,027