Available for Sale Securities - Amortized cost and fair value of available for sale securities (Details) - USD ($)	Dec. 31, 2019	Jun. 30, 2019
Amortized Cost
Due in one year or less	$ 2,053,760
Due after one year through 5 years	10,818,717
Due after 5 years through 10 years	6,083,035
Due after 10 years	1,670,000
Subtotal	20,625,512
Total	22,066,582	$ 20,339,563
Fair Value
Due in one year or less	2,057,417
Due after one year through 5 years	10,929,129
Due after 5 years through 10 years	6,147,269
Due after 10 years	1,678,379
Subtotal	20,812,194
Totals	22,299,909	20,542,118
Mortgage-backed securities
Amortized Cost
Due after one year through 5 years	1,015,619
Due after 5 years through 10 years	425,451
Total	1,441,070	1,065,193
Fair Value
Due after one year through 5 years	1,058,723
Due after 5 years through 10 years	428,992
Totals	$ 1,487,715	$ 1,106,138