Available for Sale Securities - Company's available for sale securities portfolio (Details) - USD ($)	Sep. 30, 2019	Jun. 30, 2019
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	$ 1,029,510	$ 208,583
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	8,197	22
Continuous Unrealized Losses Existing for 12 Months or Greater, Fair Value	1,388,928	2,935,133
Continuous Unrealized Losses Existing for 12 Months or Greater, Unrealized Losses	41,086	58,592
Total, Fair Value	2,418,438	3,143,716
Total, Unrealized Losses	49,283	58,614
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	1,029,510	208,583
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	8,197	22
Continuous Unrealized Losses Existing for 12 Months or Greater, Fair Value	1,388,928	2,935,133
Continuous Unrealized Losses Existing for 12 Months or Greater, Unrealized Losses	41,086	58,592
Total, Fair Value	2,418,438	3,143,716
Total, Unrealized Losses	49,283	58,614
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	0	0
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	0	0
Continuous Unrealized Losses Existing for 12 Months or Greater, Fair Value	0	0
Continuous Unrealized Losses Existing for 12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	0	0
Total, Unrealized Losses	0	0
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	0	0
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	0	0
Continuous Unrealized Losses Existing for 12 Months or Greater, Fair Value	0	0
Continuous Unrealized Losses Existing for 12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	0	0
Total, Unrealized Losses	$ 0	$ 0

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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