Securities, Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Jun. 30, 2016
Available-for-sale debt securities [Abstract]
Amortized cost	$ 76,279	$ 98,065
Gross unrealized gains	744	1,911
Gross unrealized losses	160	5
Estimated fair value	76,863	99,971
Available-for-sale equity securities and other [Abstract]
Amortized cost	62	62
Gross unrealized gains	116	90
Gross unrealized losses	0	0
Estimated fair value	178	152
Available-for-sale securities [Abstract]
Amortized cost	76,341	98,127
Gross unrealized gains	860	2,001
Gross unrealized losses	160	5
Estimated fair value	77,041	100,123
Held-to-maturity securities [Abstract]
Amortized cost	214,300	204,935
Gross unrealized gains	3,971	9,130
Gross unrealized losses	878	7
Estimated fair value	217,393	214,058
Total Securities [Abstract]
Amortized cost	290,641	303,062
Gross unrealized gains	4,831	11,131
Gross unrealized losses	1,038	12
Estimated fair value	294,434	314,181
U.S. Government Sponsored Enterprises [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,571	4,587
Gross unrealized gains	168	304
Gross unrealized losses	0	0
Estimated fair value	4,739	4,891
State and Political Subdivisions [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	46,035	60,491
Gross unrealized gains	50	8
Gross unrealized losses	5	0
Estimated fair value	46,080	60,499
Mortgage-backed Securities-Residential [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	5,372	6,360
Gross unrealized gains	72	185
Gross unrealized losses	66	5
Estimated fair value	5,378	6,540
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	17,530	22,594
Gross unrealized gains	404	1,285
Gross unrealized losses	87	0
Estimated fair value	17,847	23,879
Asset-backed Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	3	5
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	3	5
Corporate Debt Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	2,768	4,028
Gross unrealized gains	50	129
Gross unrealized losses	2	0
Estimated fair value	2,816	4,157
U.S. Government Sponsored Enterprises [Member]
Held-to-maturity securities [Abstract]
Amortized cost	4,000	2,000
Gross unrealized gains	0	32
Gross unrealized losses	24	0
Estimated fair value	3,976	2,032
State and Political Subdivisions [Member]
Held-to-maturity securities [Abstract]
Amortized cost	113,363	99,040
Gross unrealized gains	2,829	5,003
Gross unrealized losses	232	3
Estimated fair value	115,960	104,040
Mortgage-backed Securities-Residential [Member]
Held-to-maturity securities [Abstract]
Amortized cost	11,687	13,543
Gross unrealized gains	317	606
Gross unrealized losses	2	0
Estimated fair value	12,002	14,149
Mortgage-backed Securities-Multi-family [Member]
Held-to-maturity securities [Abstract]
Amortized cost	82,682	87,204
Gross unrealized gains	806	3,471
Gross unrealized losses	597	4
Estimated fair value	82,891	90,671
Corporate Debt Securities [Member]
Held-to-maturity securities [Abstract]
Amortized cost	1,000	1,000
Gross unrealized gains	0	0
Gross unrealized losses	8	0
Estimated fair value	992	1,000
Other Securities [Member]
Held-to-maturity securities [Abstract]
Amortized cost	1,568	2,148
Gross unrealized gains	19	18
Gross unrealized losses	15	0
Estimated fair value	$ 1,572	$ 2,166