Note F - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	2024					2023					2022
	Shares			Weighted Average Fair Value at Grant Date		Shares			Weighted Average Fair Value at Grant Date		Shares			Weighted Average Fair Value at Grant Date
Non-vested at beginning of period		29,671		$	88.37		32,336		$	89.49		28,934		$	95.54
Granted		4,228			78.78		1,487			77.03		7,271			70.72
Vested		(3,234	)		121.11		(4,109	)		68.46		(3,482	)		100.05
Forfeited		0			-		(43	)		93.29		(387	)		93.91
Non-vested at end of period		30,665		$	83.60		29,671		$	88.37		32,336		$	89.49