Note 6 - Stockholders' Equity (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 11, 2025	Oct. 10, 2023
Stock Repurchased and Retired During Period, Value	$ 1,171	$ 7,998	$ 3,700	$ 15,775
Share Repurchase Program Authorized October 10, 2023 [Member]
Share Repurchase Program, Authorized, Amount						$ 30,000
Share Repurchase Program Authorized December 11, 2025 [Member]
Share Repurchase Program, Authorized, Amount					$ 10,000
Share Repurchase Program [Member]
Stock Repurchased and Retired During Period, Shares (in shares)	9,000	186,000	44,000	379,000
Stock Repurchased and Retired During Period, Value	$ 1,200	$ 8,000	$ 3,700	$ 15,800
Share Repurchase Program, Remaining Authorized, Amount	$ 12,700		$ 12,700