Securities, Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Available-for-sale debt securities [Abstract]
Amortized cost	$ 85,016	$ 98,065
Gross unrealized gains	694	1,911
Gross unrealized losses	158	5
Estimated fair value	85,552	99,971
Available-for-sale equity securities and other [Abstract]
Amortized cost	62	62
Gross unrealized gains	96	90
Gross unrealized losses	0	0
Estimated fair value	158	152
Available-for-sale securities [Abstract]
Amortized cost	85,078	98,127
Gross unrealized gains	790	2,001
Gross unrealized losses	158	5
Estimated fair value	85,710	100,123
Held-to-maturity securities [Abstract]
Amortized cost	210,983	204,935
Gross unrealized gains	3,127	9,130
Gross unrealized losses	1,576	7
Estimated fair value	212,534	214,058
Total Securities [Abstract]
Amortized cost	296,061	303,062
Gross unrealized gains	3,917	11,131
Gross unrealized losses	1,734	12
Estimated fair value	298,244	314,181
U.S. Government Sponsored Enterprises [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,576	4,587
Gross unrealized gains	170	304
Gross unrealized losses	0	0
Estimated fair value	4,746	4,891
State and Political Subdivisions [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	54,297	60,491
Gross unrealized gains	0	8
Gross unrealized losses	0	0
Estimated fair value	54,297	60,499
Mortgage-backed Securities-Residential [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	5,641	6,360
Gross unrealized gains	75	185
Gross unrealized losses	54	5
Estimated fair value	5,662	6,540
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	17,727	22,594
Gross unrealized gains	383	1,285
Gross unrealized losses	101	0
Estimated fair value	18,009	23,879
Asset-backed Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4	5
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	4	5
Corporate Debt Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	2,771	4,028
Gross unrealized gains	66	129
Gross unrealized losses	3	0
Estimated fair value	2,834	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	55	0
Estimated fair value	3,945	2,032
State and Political Subdivisions [Member]
Held-to-maturity securities [Abstract]
Amortized cost	108,775	99,040
Gross unrealized gains	2,045	5,003
Gross unrealized losses	431	3
Estimated fair value	110,389	104,040
Mortgage-backed Securities-Residential [Member]
Held-to-maturity securities [Abstract]
Amortized cost	11,505	13,543
Gross unrealized gains	330	606
Gross unrealized losses	2	0
Estimated fair value	11,833	14,149
Mortgage-backed Securities-Multi-family [Member]
Held-to-maturity securities [Abstract]
Amortized cost	83,648	87,204
Gross unrealized gains	752	3,471
Gross unrealized losses	1,071	4
Estimated fair value	83,329	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	0	0
Estimated fair value	1,000	1,000
Other Securities [Member]
Held-to-maturity securities [Abstract]
Amortized cost	2,055	2,148
Gross unrealized gains	0	18
Gross unrealized losses	17	0
Estimated fair value	$ 2,038	$ 2,166