Earnings Per Share - Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net (loss) income		$ (148)	$ 85
Weighted shares outstanding for basic EPS
Weighted average shares outstanding		6,216,791,000	6,248,678,000
Less: Weighted average unallocated ESOP shares		441,651,000	261,514,000
Weighted average shares outstanding for basic EPS		5,775,140	5,987,164
Additional dilutive shares		0	203,245,000	[1]
Weighted average shares outstanding for dilutive EPS	[1],[2]	5,775,140	6,190,409
Basic (loss) income per share		$ (0.03)	$ 0.01
Diluted (loss) income per share	[1],[2]	$ (0.03)	$ 0.01

[1] For 2022, the effect of the stock options was anti-dilutive and therefore no dilutive shares are included in the weighted average shares outstanding or diluted (loss) calculations for 2022.

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