Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	$ 149,584	$ 128,805
Total other comprehensive loss, net of taxes	(1,354)	(190)
Balance	154,836	133,022
Accumulated Other Comprehensive Loss [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(1,161)	(428)
Other comprehensive loss before reclassification	(1,354)	(190)
Total other comprehensive loss, net of taxes	(1,354)	(190)
Balance	(2,515)	(618)
Unrealized Gain (Losses) on Securities Available-for-sale [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	348	1,750
Other comprehensive loss before reclassification	(1,354)	(190)
Total other comprehensive loss, net of taxes	(1,354)	(190)
Balance	(1,006)	1,560
Pension Benefits [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(1,509)	(2,178)
Other comprehensive loss before reclassification	0	0
Total other comprehensive loss, net of taxes	0	0
Balance	$ (1,509)	$ (2,178)