Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2018	[1]	Jun. 30, 2018
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance			$ 96,191	$ 83,521
Total other comprehensive income (loss), net of taxes	$ 293	$ (557)	217	(322)
Balance	104,121	89,573	104,121	89,573
Accumulated Other Comprehensive Loss [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(1,813)	(757)	(1,623)	(992)
Other comprehensive income (loss) before reclassification	293	(557)	217	(322)
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Total other comprehensive income (loss), net of taxes	293	(557)	217	(322)
Reclassification for change in accounting					$ 0		$ (114)
Balance	(1,520)	(1,314)	(1,520)	(1,314)
Unrealized Gain (Losses) on Securities Available-for-sale [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(180)	847	10	612
Other comprehensive income (loss) before reclassification	293	(557)	217	(322)
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Total other comprehensive income (loss), net of taxes	293	(557)	217	(322)
Reclassification for change in accounting					0		(114)
Balance	113	290	113	290
Pension Benefits [Member]
Balances and changes in components of accumulated other comprehensive loss [Roll Forward]
Balance	(1,633)	(1,604)	(1,633)	(1,604)
Other comprehensive income (loss) before reclassification	0	0	0	0
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Total other comprehensive income (loss), net of taxes	0	0	0	0
Reclassification for change in accounting					$ 0		$ 0
Balance	$ (1,633)	$ (1,604)	$ (1,633)	$ (1,604)

[1] Adoption of ASU 2016-01 - cumulative effect of change in measurement of equity securities.