Fair Value Measurements and Fair Value of Financial Instruments, Fair Value, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Assets [Abstract]
Securities available-for-sale	$ 91,205	$ 100,123
Recurring [Member]
Assets [Abstract]
Securities available-for-sale	91,205	100,123
Recurring [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	4,854	4,891
Recurring [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	52,454	60,499
Recurring [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	6,132	6,540
Recurring [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	23,480	23,879
Recurring [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale	4	5
Recurring [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	4,120	4,157
Recurring [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	161	152
Recurring [Member] | Level 1 [Member]
Assets [Abstract]
Securities available-for-sale	4,285	4,314
Recurring [Member] | Level 1 [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale	4	5
Recurring [Member] | Level 1 [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	4,120	4,157
Recurring [Member] | Level 1 [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	161	152
Recurring [Member] | Level 2 [Member]
Assets [Abstract]
Securities available-for-sale	86,920	95,809
Recurring [Member] | Level 2 [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	4,854	4,891
Recurring [Member] | Level 2 [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	52,454	60,499
Recurring [Member] | Level 2 [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	6,132	6,540
Recurring [Member] | Level 2 [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	23,480	23,879
Recurring [Member] | Level 2 [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 2 [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 2 [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	$ 0	$ 0