Mergers and Acquisitions (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Dec. 31, 2018 USD ($) $ / shares shares	Jun. 30, 2018 office
Community First | Forecast
Business Acquisition [Line Items]
Equity issuable (in shares) | shares	1.2008
Cash consideration per share (in dollars per share) | $ / shares	$ 6.95
Equity issuable | $	$ 16.3
Payments to acquire businesses, gross | $	$ 2.6
Community First | Clarion County, PA
Business Acquisition [Line Items]
Number of offices | office		2
Community First | Jefferson County, PA
Business Acquisition [Line Items]
Number of offices | office		2