Available for Sale Securities - Company's available for sale securities portfolio (Details) - USD ($)	Jun. 30, 2019	Jun. 30, 2018
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	$ 208,583	$ 17,336,154
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	22	295,325
Continuous Unrealized Losses Existing for 12 Months or Greater, Fair Value	2,935,133	2,045,230
Continuous Unrealized Losses Existing for 12 Months or Greater, Unrealized Losses	58,592	141,005
Total, Fair Value	3,143,716	19,381,384
Total, Unrealized Losses	58,614	436,330
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	208,583	15,856,505
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	22	282,562
Continuous Unrealized Losses Existing for 12 Months or Greater, Fair Value	2,935,133	2,045,230
Continuous Unrealized Losses Existing for 12 Months or Greater, Unrealized Losses	58,592	141,005
Total, Fair Value	3,143,716	17,901,735
Total, Unrealized Losses	58,614	423,567
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	0	1,157,940
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	0	4,472
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	1,157,940
Total, Unrealized Losses	0	4,472
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Losses Existing for Less Than 12 Months, Fair Value	0	321,709
Continuous Unrealized Losses Existing for Less Than 12 Months, Unrealized Losses	0	8,291
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	321,709
Total, Unrealized Losses	$ 0	$ 8,291