Unaudited Consolidated Statements of Changes in Shareholders' Equity (Parenthetical)	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Statement Of Stockholders Equity [Abstract]
Exercise of stock options, shares	23,150
Purchase of treasury stock, shares	17,305
Restricted stock grants, shares	65,750
Sale of treasury shares	19,378
Dividends declared, per share | $ / shares	$ 0.44