Fair Value Measurements and Fair Value of Financial Instruments, Fair Value, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Assets [Abstract]
Securities available-for-sale	$ 85,710	$ 100,123
Recurring [Member]
Assets [Abstract]
Securities available-for-sale	85,710	100,123
Recurring [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	4,746	4,891
Recurring [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	54,297	60,499
Recurring [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	5,662	6,540
Recurring [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	18,009	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	2,834	4,157
Recurring [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	158	152
Recurring [Member] | Level 1 [Member]
Assets [Abstract]
Securities available-for-sale	2,996	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	2,834	4,157
Recurring [Member] | Level 1 [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	158	152
Recurring [Member] | Level 2 [Member]
Assets [Abstract]
Securities available-for-sale	82,714	95,809
Recurring [Member] | Level 2 [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	4,746	4,891
Recurring [Member] | Level 2 [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	54,297	60,499
Recurring [Member] | Level 2 [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	5,662	6,540
Recurring [Member] | Level 2 [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	18,009	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