Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Available-for-sale debt securities [Abstract]
Amortized cost	$ 107,039	$ 120,947
Gross unrealized gains	412	299
Gross unrealized losses	259	440
Estimated fair value	107,192	120,806
Held-to-maturity securities [Abstract]
Amortized cost	276,939	274,550
Gross unrealized gains	3,421	3,313
Gross unrealized losses	2,016	3,686
Estimated fair value	278,344	274,177
Total Securities [Abstract]
Amortized cost	383,978	395,497
Gross unrealized gains	3,833	3,612
Gross unrealized losses	2,275	4,126
Estimated fair value	385,536	394,983
U.S. Government Sponsored Enterprises [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	5,534	5,543
Gross unrealized gains	15	18
Gross unrealized losses	18	30
Estimated fair value	5,531	5,531
Held-to-maturity securities [Abstract]
Amortized cost	9,248	9,245
Gross unrealized gains	0	0
Gross unrealized losses	166	278
Estimated fair value	9,082	8,967
State and Political Subdivisions [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	80,163	92,052
Gross unrealized gains	275	204
Gross unrealized losses	0	1
Estimated fair value	80,438	92,255
Held-to-maturity securities [Abstract]
Amortized cost	142,854	136,335
Gross unrealized gains	3,194	3,091
Gross unrealized losses	422	532
Estimated fair value	145,626	138,894
Mortgage-backed Securities-Residential [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	2,926	3,332
Gross unrealized gains	11	13
Gross unrealized losses	78	98
Estimated fair value	2,859	3,247
Held-to-maturity securities [Abstract]
Amortized cost	5,256	6,472
Gross unrealized gains	43	72
Gross unrealized losses	1	7
Estimated fair value	5,298	6,537
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	16,650	18,249
Gross unrealized gains	111	64
Gross unrealized losses	106	244
Estimated fair value	16,655	18,069
Held-to-maturity securities [Abstract]
Amortized cost	116,810	118,780
Gross unrealized gains	173	123
Gross unrealized losses	1,394	2,845
Estimated fair value	115,589	116,058
Corporate Debt Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	1,766	1,771
Gross unrealized gains	0	0
Gross unrealized losses	57	67
Estimated fair value	1,709	1,704
Held-to-maturity securities [Abstract]
Amortized cost	1,471	1,466
Gross unrealized gains	0	11
Gross unrealized losses	28	9
Estimated fair value	1,443	1,468
Other Securities [Member]
Held-to-maturity securities [Abstract]
Amortized cost	1,300	2,252
Gross unrealized gains	11	16
Gross unrealized losses	5	15
Estimated fair value	$ 1,306	$ 2,253

Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost.

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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