Securities, Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Available-for-sale Debt Securities, Amortized Cost [Abstract]
Within one year	$ 55,006
After one year through five years	6,638
After five years through ten years	0
After ten years	0
Total available for sale debt securities	61,644
Mortgage-backed and asset-backed securities	23,372
Equity securities	62	$ 62
Amortized cost	85,078	98,127
Available-for-sale Debt Securities, Fair Value [Abstract]
Within one year	55,055
After one through five years	6,822
After five through ten years	0
After ten years	0
Total available-for-sale debt securities	61,877
Mortgage-backed and asset-backed securities	23,675
Equity securities	158	152
Estimated fair value	85,710	100,123
Held-to-maturity Debt Securities, Amortized Cost [Abstract]
Within one year	15,632
After one year through five years	56,769
After five years through ten years	32,225
After ten years	11,204
Total held-to-maturity debt securities	115,830
Mortgage-backed	95,153
Amortized cost	210,983	204,935
Held-to-maturity Debt Securities, Fair Value [Abstract]
Within one year	15,754
After one year through five years	57,364
After five years through ten years	32,621
After ten years	11,633
Total held-to-maturity debt securities	117,372
Mortgage-backed	95,162
Estimated fair value	212,534	214,058
Total Securities [Abstract]
Amortized cost	296,061	303,062
Estimated fair value	298,244	314,181
Securities pledged as collateral for deposits in excess of FDIC insurance limits, fair value	279,700	291,600
Securities pledged as collateral for potential borrowings at the Federal Reserve Bank discount window	$ 2,800	$ 4,200