NOTE 7 - EARNINGS PER SHARE - Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2026	Sep. 30, 2025
EARNINGS PER SHARE
Net income	$ 36,434	$ 36,251	$ 33,383	$ 36,714	$ 29,019	$ 25,797	$ 106,068	$ 91,530
Basic EPS	$ 2.23			$ 2.17			$ 6.43	$ 5.41
Diluted EPS	$ 2.21			$ 2.16			$ 6.39	$ 5.38
Weighted average common shares outstanding	16,362,311			16,919,785			16,501,369	16,916,371
Weighted average common shares issuable upon exercise of stock options and under the employee stock purchase plan (in shares)	88,800			95,945			86,120	95,506
Weighted average common and common equivalent shares outstanding	16,451,111			17,015,730			16,587,489	17,011,877