Fair Value Measurements and Fair Value of Financial Instruments, Fair Value Inputs, Assets, Quantitative Information (Details) - Nonrecurring [Member] - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 845	$ 491
Foreclosed Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		799	370
Appraisal of Collateral [Member] | Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	[1]	$ 845	$ 491
Appraisal of Collateral [Member] | Impaired Loans [Member] | Minimum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	25.00%	0.00%
Liquidation expenses	[1],[3]	3.45%	0.00%
Appraisal of Collateral [Member] | Impaired Loans [Member] | Maximum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	42.52%	38.85%
Liquidation expenses	[1],[3]	7.38%	8.35%
Appraisal of Collateral [Member] | Impaired Loans [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	28.46%	21.01%
Liquidation expenses	[1],[3]	5.93%	4.92%
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	[1]	$ 799	$ 370
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member] | Minimum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	0.00%	0.00%
Liquidation expenses	[1],[3]	11.64%	0.42%
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member] | Maximum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	0.00%	54.17%
Liquidation expenses	[1],[3]	17.92%	12.67%
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	0.00%	8.83%
Liquidation expenses	[1],[3]	16.29%	7.81%

[1] Fair value is generally determined through independent third-party appraisals of the underlying collateral, which generally includes various Level 3 inputs which are not observable.

[2] Appraisals may be adjusted downwards by management for qualitative factors such as economic conditions. Higher downward adjustments are caused by negative changes to the collateral or conditions in the real estate market, actual offers or sales contracts received or age of the appraisal.

[3] Appraisals may be adjusted downwards by management for items such as the estimated costs to liquidate the collateral.