Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Calculation of earnings per share [Abstract]
Net income	$ 732	$ 1,062	$ 2,955	$ 4,446
Weighted average shares outstanding - basic (in shares)	3,047,000	3,006,000	3,040,000	3,022,000
Effect of dilutive common stock equivalents (in shares)	44,000	126,000	56,000	142,000
Adjusted weighted average shares outstanding - diluted (in shares)	3,091,000	3,132,000	3,096,000	3,164,000
Basic earnings per share (in dollars per share)	$ 0.24	$ 0.35	$ 0.97	$ 1.48
Diluted earnings per share (in dollars per share)	$ 0.24	$ 0.34	$ 0.95	$ 1.41
Outstanding options to purchase shares (in shares)	364,037	384,789	364,625	387,701
Weighted average price per share of outstanding options (in dollars per share)	$ 11.66	$ 11.81	$ 11.66	$ 11.81
Components of weighted average outstanding shares [Abstract]
Average common shares issued (in shares)	6,124,000	6,124,000	6,124,000	6,124,000
Average unearned ESOP shares (in shares)	(94,000)	(113,000)	(96,000)	(119,000)
Average Company stock purchased (in shares)	(2,983,000)	(3,005,000)	(2,988,000)	(2,983,000)
Weighted average shares outstanding (in shares)	3,047,000	3,006,000	3,040,000	3,022,000
Stock Options [Member]
Calculation of earnings per share [Abstract]
Effect of dilutive common stock equivalents (in shares)	43,676	126,427	55,910	142,259