Earnings (Loss) Per Share - Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net Income (Loss)		$ (516)	$ (508)	$ (822)	$ (869)
Weighted shares outstanding for basic EPS
Weighted average shares outstanding		5,874,184	5,991,777	5,878,777	5,997,436
Less: Weighted average unallocated ESOP shares		426,677	446,442	429,129	448,874
Weighted average shares outstanding for basic EPS		5,447,507	5,545,335	5,449,648	5,548,562
Additional dilutive shares	[1]	0	0	0	0
Weighted average shares outstanding for dilutive EPS	[2]	5,447,507	5,545,335	5,449,648	5,548,562
Basic (loss) per share		$ (0.09)	$ (0.09)	$ (0.15)	$ (0.16)
Diluted (loss) per share	[1],[2]	$ (0.09)	$ (0.09)	$ (0.15)	$ (0.16)

[1] For the three and six months ended June 30, 2024 and June 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.