Stock-Based Compensation (Details 1) - Employee Stock Option [Member] - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of the status of the stock option plan and changes
Shares Outstanding at beginning of year	495,195	541,414	648,311
Shares Granted	121,000	101,700	101,350
Shares Exercised	(127,871)	(93,870)	(191,497)
Shares Forfeited or expired	(23,600)	(54,049)	(16,750)
Shares Outstanding at end of year	464,724	495,195	541,414
Shares options exercisable at year-end	239,340	287,548	305,991
Shares available for grant	422,550	136,339	183,990
Weighted average exercise price Outstanding at beginning of year	$ 29.93	$ 26.65	$ 20.74
Weighted average exercise price Granted	40.45	37.77	32.81
Weighted average exercise price Exercised	23.56	14.79	9.24
Weighted average exercise price Forfeited or expired	38.88	38.15	34.01
Weighted average exercise price Outstanding at end of year	33.97	29.93	26.65
Weighted average exercise price, Options exercisable at year-end	29.68	24.93	20.00
Weighted average fair value of options granted during the year	$ 16.40	$ 11.37	$ 11.81
Weighted Average Remaining Contractual Life, Outstanding at end of year	6 years 7 months 6 days	6 years 4 months 24 days	6 years 3 months 18 days
Weighted Average Remaining Contractual Life, Options exercisable at year-end	5 years	5 years	4 years 10 months 24 days