Fair Value Measurements and Fair Value of Financial Instruments, Fair Value Inputs, Assets, Quantitative Information (Details) - Level 3 [Member] $ in Thousands		Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Liquidation Expenses [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Foreclosed real estate, measurement input	[1]		0.1041
Liquidation Expenses [Member] | Minimum [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input	[1]	0.0398	0.0398
Liquidation Expenses [Member] | Maximum [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input	[1]	0.0688	0.0600
Liquidation Expenses [Member] | Weighted Average [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input	[1]	0.0464	0.0453
Foreclosed real estate, measurement input	[1]		0.1041
Appraisal of Collateral [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans	[2]	$ 1,143	$ 1,403
Foreclosed real estate	[2]		$ 53
Appraisal of Collateral [Member] | Appraisal Adjustments [Member] | Minimum [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input	[2],[3]	0.0857	0.0000
Foreclosed real estate, measurement input	[2],[3]		0.0000
Appraisal of Collateral [Member] | Appraisal Adjustments [Member] | Maximum [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input	[2],[3]	0.3373	0.3373
Foreclosed real estate, measurement input	[2],[3]		0.0000
Appraisal of Collateral [Member] | Appraisal Adjustments [Member] | Weighted Average [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input	[2],[3]	0.2755	0.2448
Foreclosed real estate, measurement input	[2],[3]		0.0000
Discounted Cash Flow [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans		$ 438	$ 670
Discounted Cash Flow [Member] | Discount Rate [Member] | Minimum [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input		0.0419	0.0419
Discounted Cash Flow [Member] | Discount Rate [Member] | Maximum [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input		0.0663	0.0866
Discounted Cash Flow [Member] | Discount Rate [Member] | Weighted Average [Member]
Additional Quantitative Information about Assets Measured at Fair Value [Abstract]
Impaired loans, measurement input		0.0564	0.0607

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

[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 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.