Available for Sale Securities - Contractual maturities (Details) - USD ($)	Mar. 31, 2020	Jun. 30, 2019
Amortized Cost
Due in one year or less	$ 1,547,215
Due after one year through 5 years	11,406,921
Due after 5 years through 10 years	5,508,965
Due after 10 years	2,040,000
Subtotal	20,503,101
Total	21,909,742	$ 20,339,563
Fair Value
Due in one year or less	1,553,154
Due after one year through 5 years	11,606,371
Due after 5 years through 10 years	5,677,547
Due after 10 years	2,093,520
Subtotal	20,930,592
Totals	22,378,822	20,542,118
Mortgage-backed securities
Amortized Cost
Due after one year through 5 years	0
Due after 5 years through 10 years	990,546
Due after 10 years	416,095
Total	1,406,641	1,065,193
Fair Value
Due after one year through 5 years	0
Due after 5 years through 10 years	1,028,351
Due after 10 years	419,879
Totals	$ 1,448,230	$ 1,106,138