Changes in and Reclassifications Out of Accumulated Other Comprehensive Income - Reclassifications out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities (losses) gains reclassified into net income	$ (30)				$ (30)	$ 93
Related income tax benefit (expense)	370		$ (338)		516	(118)
NET INCOME	1,376	$ 670	$ 929	$ 854	2,046	1,783
Reclassifications out of AOCI | Gains (Losses) on Securities Available for Sale
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities (losses) gains reclassified into net income	(30)				(30)	93
Related income tax benefit (expense)	7				7	(21)
NET INCOME	$ (23)				$ (23)	$ 72