Earnings (Loss) Per Share - Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net Income (Loss)		$ (159)	$ (3,641)	$ (981)	$ (4,510)
Weighted shares outstanding for basic EPS
Weighted average shares outstanding		5,855,684	5,976,208	5,876,293	5,984,897
Less: Weighted average unallocated ESOP shares		421,744	441,497	426,650	446,388
Weighted average shares outstanding for basic EPS		5,433,940	5,534,711	5,449,643	5,538,509
Additional dilutive shares	[1]	0	0	0	0
Weighted average shares outstanding for dilutive EPS	[2]	5,433,940	5,534,711	5,449,643	5,538,509
Basic (loss) per share		$ (0.03)	$ (0.66)	$ (0.18)	$ (0.81)
Diluted (loss) per share	[1],[2]	$ (0.03)	$ (0.66)	$ (0.18)	$ (0.81)

[1] For the three and nine months ended September 30, 2024 and September 30, 2023, the effect of stock options was anti-dilutive due to the net loss and therefore no dilutive shares are included in the weighted average shares outstanding or diluted loss calculations.

[2] Diluted loss per share and average shares outstanding excludes all common shares if their effect is anti-dilutive.