Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member] Common Stock Voting [Member]	Common Stock [Member] Common Stock Non-Voting [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings (Substantially Restricted) [Member]	Unearned ESOP Shares [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2019	$ 218	$ 87	$ 46,426	$ (23)	$ 8,425	$ (959)	$ (5,326)	$ 48,848
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	0	0	0	0	(33)	0	0	(33)
Release of unearned ESOP shares	0	0	0	0	0	17	0	17
Restricted stock Compensation expense	1	0	70	0	0	0	0	71
Stock awarded to directors	0	0	45	0	0	0	0	45
Stock option compensation expense	0	0	9	0	0	0	0	9
Other comprehensive income (loss), net of tax	0	0	0	123	0	0	0	123
Balance at Mar. 31, 2020	219	87	46,550	100	8,392	(942)	(5,326)	49,080
Balance at Dec. 31, 2020	219	87	46,851	164	7,783	(893)	(5,326)	48,885
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	0	0	0	0	(3,487)	0	0	(3,487)
Release of unearned ESOP shares	0	0	7	0	0	16	0	23
Restricted stock Compensation expense		0	162	0	0	0	0	162
Common stock cancelled for payment of tax withholdings	(1)	0	(446)	0	0	0	0	(447)
Stock awarded to directors		0	45	0	0	0	0	45
Stock option compensation expense	0	0	6	0	0	0	0	6
Other comprehensive income (loss), net of tax	0	0	0	(111)	0	0	0	(111)
Balance at Mar. 31, 2021	$ 218	$ 87	$ 46,625	$ 53	$ 4,296	$ (877)	$ (5,326)	$ 45,076