Consolidated Statements of Changes in Shareholders' Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restricted stock award grants (in shares)			35,160	39,790
Issuance of common stock, net of issuance costs (in shares)	0		115,790
Performance-based restricted stock award (in shares)			8,351
Purchase of treasury stock (in shares)		40,000		40,000
Cash dividends declared (in dollars per share)	$ 0.17	$ 0.17	$ 0.34	$ 0.34
Restricted Stock
Purchase of treasury stock (in shares)	56	1,388	7,267
Performance Shares
Purchase of treasury stock (in shares)			3,458	9,088