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Earnings Per Common Share ("EPS") - Factors Used in Earnings Per Common Share Computation (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income	$ 690	$ 1,154	$ 4,063	$ 4,749
Basic weighted average shares outstanding	3,343,670	3,257,782	3,318,809	3,251,073
Less: Average unallocated ESOP shares	(161,177)	(180,422)	(165,988)	(185,233)
Basic average shares outstanding	3,182,493	3,077,360	3,152,821	3,065,840
Diluted effect of restricted stock awards and stock options	82,103	72,919	86,964	68,497
Diluted average shares outstanding	3,246,596	3,150,279	3,239,785	3,134,337
Basic earnings per common share	$ 0.22	$ 0.37	$ 1.29	$ 1.55
Diluted earnings per common share	$ 0.21	$ 0.37	$ 1.25	$ 1.52

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of employee stock ownership plan (ESOP) shares that have not been committed to be released determined by relating the portion of time within a reporting period that these shares have been outstanding to the total time in that period.

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