Fair Value Measurements and Fair Value of Financial Instruments, Fair Value Inputs, Assets, Quantitative Information (Details) - Level 3 [Member] $ in Thousands		Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Foreclosed real estate		$ 119
Appraisal of Collateral [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans		$ 1,687	$ 845
Foreclosed real estate			$ 799
Appraisal of Collateral [Member] | Appraisal Adjustments [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input	[1],[2]	0.2658	0.2500
Foreclosed real estate, measurement input	[1],[2]	0.0000	0.0000
Appraisal of Collateral [Member] | Appraisal Adjustments [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input	[1],[2]	0.3100	0.4252
Foreclosed real estate, measurement input	[1],[2]	0.0000	0.0000
Appraisal of Collateral [Member] | Appraisal Adjustments [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input	[1],[2]	0.2817	0.2846
Foreclosed real estate, measurement input	[1],[2]	0.0000	0.0000
Appraisal of Collateral [Member] | Liquidation Expenses [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input	[2],[3]	0.0414	0.0345
Foreclosed real estate, measurement input	[2],[3]	0.0899	0.1164
Appraisal of Collateral [Member] | Liquidation Expenses [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input	[2],[3]	0.0726	0.0738
Foreclosed real estate, measurement input	[2],[3]	0.1178	0.1792
Appraisal of Collateral [Member] | Liquidation Expenses [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input	[2],[3]	0.0507	0.0593
Foreclosed real estate, measurement input	[2],[3]	0.0992	0.1629
Discounted Cash Flow [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans		$ 630
Discounted Cash Flow [Member] | Discount Rate [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input		0.0419
Discounted Cash Flow [Member] | Discount Rate [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input		0.0663
Discounted Cash Flow [Member] | Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Impaired loans, measurement input		0.0536

[1] 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.

[2] 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.

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