Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2016 USD ($) Security	Sep. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 2,630		$ 924
Less than 12 months, unrealized losses	$ 9		$ 5
Less than 12 months, number of securities | Security	2		1
More than 12 months, fair value	$ 0		$ 0
More than 12 months, unrealized losses	$ 0		$ 0
More than 12 months, number of securities | Security	0		0
Total, fair value	$ 2,630		$ 924
Total, unrealized losses	$ 9		$ 5
Total, number of securities | Security	2		1
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 5,075		$ 771
Less than 12 months, unrealized losses	$ 22		$ 6
Less than 12 months, number of securities | Security	29		5
More than 12 months, fair value	$ 139		$ 175
More than 12 months, unrealized losses	$ 1		$ 1
More than 12 months, number of securities | Security	1		2
Total, fair value	$ 5,214		$ 946
Total, unrealized losses	$ 23		$ 7
Total, number of securities | Security	30		7
Total Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 7,705		$ 1,695
Less than 12 months, unrealized losses	$ 31		$ 11
Less than 12 months, number of securities | Security	31		6
More than 12 months, fair value	$ 139		$ 175
More than 12 months, unrealized losses	$ 1		$ 1
More than 12 months, number of securities | Security	1		2
Total, fair value	$ 7,844		$ 1,870
Total, unrealized losses	$ 32		$ 12
Total, number of securities | Security	32		8
Proceeds from sale of available-for-sale securities, debt	$ 0	$ 0
Gross realized gains (losses) on sale of available-for-sale securities	0	0
Other-than-temporary impairment losses	0	$ 0
Mortgage-backed Securities-Residential [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	896		$ 924
Less than 12 months, unrealized losses	$ 7		$ 5
Less than 12 months, number of securities | Security	1		1
More than 12 months, fair value	$ 0		$ 0
More than 12 months, unrealized losses	$ 0		$ 0
More than 12 months, number of securities | Security	0		0
Total, fair value	$ 896		$ 924
Total, unrealized losses	$ 7		$ 5
Total, number of securities | Security	1		1
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 1,734
Less than 12 months, unrealized losses	$ 2
Less than 12 months, number of securities | Security	1
More than 12 months, fair value	$ 0
More than 12 months, unrealized losses	$ 0
More than 12 months, number of securities | Security	0
Total, fair value	$ 1,734
Total, unrealized losses	$ 2
Total, number of securities | Security	1
U.S. Government Sponsored Enterprises [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Total, unrealized losses	$ 0		$ 0
State and Political Subdivisions [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	2,319		272
Less than 12 months, unrealized losses	$ 12		$ 2
Less than 12 months, number of securities | Security	25		1
More than 12 months, fair value	$ 139		$ 175
More than 12 months, unrealized losses	$ 1		$ 1
More than 12 months, number of securities | Security	1		2
Total, fair value	$ 2,458		$ 447
Total, unrealized losses	$ 13		$ 3
Total, number of securities | Security	26		3
Mortgage-backed Securities-Residential [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Total, unrealized losses	$ 0		$ 0
Mortgage-backed Securities-Multi-family [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	2,532		499
Less than 12 months, unrealized losses	$ 9		$ 4
Less than 12 months, number of securities | Security	3		4
More than 12 months, fair value	$ 0		$ 0
More than 12 months, unrealized losses	$ 0		$ 0
More than 12 months, number of securities | Security	0		0
Total, fair value	$ 2,532		$ 499
Total, unrealized losses	$ 9		$ 4
Total, number of securities | Security	3		4
Other Securities [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 224
Less than 12 months, unrealized losses	$ 1
Less than 12 months, number of securities | Security	1
More than 12 months, fair value	$ 0
More than 12 months, unrealized losses	$ 0
More than 12 months, number of securities | Security	0
Total, fair value	$ 224
Total, unrealized losses	$ 1		$ 0
Total, number of securities | Security	1