Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Other comprehensive income, tax expense (benefit)	$ 2	$ 220	$ 164	$ 167
Income tax benefit	$ 233		$ 127
ESOP, shares earned	1,984	1,984	1,983	1,984
Compensation plan shares granted		20,830		5,186
Compensation plan shares forfeited	332		760
Compensation plan shares earned	3,299	1,889	6,107	5,518
Purchase of treasury stock, shares	40,600	26,900	43,900	7,300
Cash dividends declared, value per share	$ 0.12	$ 0.12	$ 0.12	$ 0.12
Accounting Standards Update 2016-02 [Member]
Income tax benefit				$ (2)