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Available for Sale Securities (Details) - USD ($)
Dec. 31, 2019
Jun. 30, 2019
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 22,066,582 $ 20,339,563
Gross Unrealized Gains 298,493 261,169
Gross Unrealized Losses 65,166 58,614
Fair Value 22,299,909 20,542,118
Obligations of states and political subdivisions    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 19,825,512 18,719,370
Gross Unrealized Gains 234,343 217,627
Gross Unrealized Losses 65,166 58,614
Fair Value 19,994,689 18,878,383
Mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 1,441,070 1,065,193
Gross Unrealized Gains 46,645 40,945
Gross Unrealized Losses 0 0
Fair Value 1,487,715 1,106,138
Certificates of deposit    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 800,000 555,000
Gross Unrealized Gains 17,505 2,597
Gross Unrealized Losses 0 0
Fair Value $ 817,505 $ 557,597