Subsequent Events (Details)		1 Months Ended	3 Months Ended
	Oct. 01, 2015 county	Oct. 31, 2015 USD ($) location	Sep. 30, 2015 location
Subsequent events
Number of branches consolidated			3
Subsequent event
Subsequent events
Number of counties included in Federal Disaster Area | county	11
Number of branches sold		2
Deposit premium to be received (as a percent)		3.50%
Deposit premium received | $		$ 900,000