Consolidated Statements of Changes in Shareholders' Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Forfeiture of restricted stock award grants (in shares)			1,578
Restricted stock award grants (in shares)			50,106	35,160
Performance-based restricted stock award (in shares)			10,587	8,351
Issuance of common stock, net of issuance costs (in shares)		0		115,790
Cash dividends declared (in dollars per share)	$ 0.17	$ 0.17	$ 0.34	$ 0.34
Restricted Stock
Purchase of treasury stock (in shares)	65	56	6,663	7,267
Performance Based Restricted Stock Awards
Purchase of treasury stock (in shares)			941	3,458