Loans - Summary of TDRs (Details)	12 Months Ended
	Jun. 30, 2018 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 1,407,541
Transfers out of TDR status	(1,407,541)
Accruing
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	1,407,541
Transfers out of TDR status	(1,407,541)
Commercial Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	1,407,541
Transfers out of TDR status	(1,407,541)
Commercial Non-Owner Occupied | Accruing
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	1,407,541
Transfers out of TDR status	$ (1,407,541)