Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	$ 168,207	$ 159,983	$ 157,714	$ 149,584
Amounts reclassified to net loss on sale of available-for-sale securities non-interest income	0	0	251	0
Tax expense effect	0	0	67	0
Reclassification adjustment for loss on sale of available-for-sale securities realized in net income, net	0	0	184	0
Total other comprehensive income (loss), net of taxes	2,927	(9,732)	(1,716)	(12,304)
Balance	178,678	156,932	178,678	156,932
Accumulated Other Comprehensive Loss [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(23,026)	(3,733)	(18,383)	(1,161)
Other comprehensive income (loss) before reclassification	2,927	(9,732)	(1,900)	(12,304)
Amounts reclassified to net loss on sale of available-for-sale securities non-interest income			251
Tax expense effect			67
Reclassification adjustment for loss on sale of available-for-sale securities realized in net income, net			184
Total other comprehensive income (loss), net of taxes	2,927	(9,732)	(1,716)	(12,304)
Balance	(20,099)	(13,465)	(20,099)	(13,465)
Unrealized Gain (Losses) on Securities Available-for-sale [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(21,911)	(2,224)	(17,268)	348
Other comprehensive income (loss) before reclassification	2,927	(9,732)	(1,900)	(12,304)
Amounts reclassified to net loss on sale of available-for-sale securities non-interest income			251
Tax expense effect			67
Reclassification adjustment for loss on sale of available-for-sale securities realized in net income, net			184
Total other comprehensive income (loss), net of taxes	2,927	(9,732)	(1,716)	(12,304)
Balance	(18,984)	(11,956)	(18,984)	(11,956)
Pension Benefits [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(1,115)	(1,509)	(1,115)	(1,509)
Other comprehensive income (loss) before reclassification	0	0	0	0
Amounts reclassified to net loss on sale of available-for-sale securities non-interest income			0
Tax expense effect			0
Reclassification adjustment for loss on sale of available-for-sale securities realized in net income, net			0
Total other comprehensive income (loss), net of taxes	0	0	0	0
Balance	$ (1,115)	$ (1,509)	$ (1,115)	$ (1,509)