Consolidated Statements Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Unearned Compensation ESOP [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance at Dec. 31, 2019	$ 78,462	$ 56	$ 51,127	$ 31,757	$ (3,944)	$ (534)
Beginning balance, shares at Dec. 31, 2019		5,576,855
Net income (loss)	(818)			(818)
Other comprehensive income (loss)	1,561					1,561
Stock repurchased	(1,195)	$ (1)	(1,194)
Stock repurchased, shares		(98,800)
Restricted stock awards forfeited, shares		(7,251)
Share redemption for tax withholdings for restricted stock vesting	(53)		(53)
Share redemption for tax with holdings for restricted stock vesting, shares		(4,460)
Stock-based compensation	931		931
ESOP shares committed to be released	68		21		47
Ending balance at Mar. 31, 2020	78,956	$ 55	50,832	30,939	(3,897)	1,027
Ending balance, shares at Mar. 31, 2020		5,466,344
Beginning balance at Dec. 31, 2019	78,462	$ 56	51,127	31,757	(3,944)	(534)
Beginning balance, shares at Dec. 31, 2019		5,576,855
Ending balance at Dec. 31, 2020	99,819	$ 54	50,937	51,689	(3,756)	895
Ending balance, shares at Dec. 31, 2020		5,495,514
Net income (loss)	4,112			4,112
Other comprehensive income (loss)	(794)					(794)
Stock repurchased	(2,652)	$ (1)	(2,651)
Stock repurchased, shares		(130,295)
Share redemption for tax withholdings for restricted stock vesting	(3)		(3)
Share redemption for tax with holdings for restricted stock vesting, shares		(173)
Stock-based compensation	283		283
ESOP shares committed to be released	94		47		47
ESOP shares committed to be released, shares		(806)
Ending balance at Mar. 31, 2021	$ 100,859	$ 53	$ 48,613	$ 55,801	$ (3,709)	$ 101
Ending balance, shares at Mar. 31, 2021		5,364,240