Reportable Segments (Narrative) (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Jun. 30, 2019 USD ($) Segment	Jun. 30, 2018 USD ($)
Segment Reporting [Abstract]
Non-recurring expenses, salaries and employee benefits		$ 1,700,000
Non-recurring expenses, premises and occupancy		337,000
Non-recurring equipment expenses, Operating and administrative expenses		$ 758,000
Litigation settlement expense	$ 650,000		$ 3,400,000
Revaluation of net deferred tax assets consistent with Tax Act			$ 1,800,000
Number of operating segments | Segment		1
Number of reportable segments | Segment		1