Consolidated Statements of Changes in Shareholders' Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Forfeiture of restricted stock award grants (in shares)	0
Restricted stock award grants (in shares)	35,160	39,790
Issuance of common stock, net of issuance costs (in shares)	115,790
Performance-based restricted stock award (in shares)	8,351
Cash dividends declared (in dollars per share)	$ 0.17	$ 0.17
Purchase of treasury stock (in shares)		0
Restricted Stock
Purchase of treasury stock (in shares)	7,211	7,700
Performance Shares
Purchase of treasury stock (in shares)	3,458