Consolidated Statements of Changes in Stockholders Equity - USD ($) $ in Thousands	Common Stock	Additional Paid in Capital.	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	ESOP – Owned Shares	Total
Beginning balance at Dec. 31, 2018	$ 13,775	$ 27,743	$ 159,037	$ (3,601)	$ (34,494)	$ 162,460
Net Income			21,888			21,888
Other comprehensive income (loss)				6,686		6,686
Common stock repurchased	(82)	(291)	(1,574)			(1,947)
Common stock dividends			(6,312)			(6,312)
ESOP repurchase obligation termination					34,494	34,494
Initial public offering of 3,289,000 shares of common stock net of issuance costs	3,289	59,515				62,804
Stock-based compensation expense	13	1,317				1,330
Vesting of restricted stock	54	(54)
Ending balance at Sep. 30, 2019	17,049	88,230	173,039	3,085		281,403
Beginning balance at Jun. 30, 2019	13,816	28,676	169,788	1,485	(34,494)	179,271
Net Income			7,104			7,104
Other comprehensive income (loss)				1,600		1,600
Common stock repurchased	(77)	(275)	(1,489)			(1,841)
Common stock dividends			(2,364)			(2,364)
ESOP repurchase obligation termination					$ 34,494	34,494
Initial public offering of 3,289,000 shares of common stock net of issuance costs	3,289	59,515				62,804
Stock-based compensation expense		335				335
Vesting of restricted stock	21	(21)
Ending balance at Sep. 30, 2019	17,049	88,230	173,039	3,085		281,403
Beginning balance at Dec. 31, 2019	17,050	88,650	178,092	1,936		285,728
Net Income			34,496			34,496
Other comprehensive income (loss)				8,607		8,607
Common stock repurchased	(15)	(140)	(217)			(372)
Common stock dividends			(7,790)			(7,790)
Stock-based compensation expense	14	1,320				1,334
Vesting of restricted stock	73	(73)
Ending balance at Sep. 30, 2020	17,122	89,757	204,581	10,543		322,003
Beginning balance at Jun. 30, 2020	17,120	89,313	189,528	9,771		305,732
Net Income			17,659			17,659
Other comprehensive income (loss)				772		772
Common stock repurchased		(29)	(7)			(36)
Common stock dividends			(2,599)			(2,599)
Stock-based compensation expense		475				475
Vesting of restricted stock	2	(2)
Ending balance at Sep. 30, 2020	$ 17,122	$ 89,757	$ 204,581	$ 10,543		$ 322,003