Reclassification Adjustment of Accumulated Other Comprehensive Income ("AOCI") (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	$ 230	$ 280	$ 229	$ 313
Other Comprehensive (loss) income before reclassifications	(65)	(16)	(64)	(49)
Amount reclassified from accumulated other comprehensive income	45	0	45	0
Other comprehensive loss	(20)	(16)	(19)	(49)
Ending balance	210	264	210	264
Unrealized Gain and Losses on Investment Securities Available For Sale [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	214	256	211	286
Other Comprehensive (loss) income before reclassifications	(61)	(14)	(58)	(44)
Amount reclassified from accumulated other comprehensive income	42	0	42	0
Other comprehensive loss	(19)	(14)	(16)	(44)
Ending balance	195	242	195	242
Unrealized Gain and Losses on Interest-only strips [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	16	24	18	27
Other Comprehensive (loss) income before reclassifications	(4)	(2)	(6)	(5)
Amount reclassified from accumulated other comprehensive income	3	0	3	0
Other comprehensive loss	(1)	(2)	(3)	(5)
Ending balance	$ 15	$ 22	$ 15	$ 22