Subsequent Events (Details) $ in Thousands			3 Months Ended		6 Months Ended
	Aug. 21, 2015 item	Apr. 22, 2015 item	Dec. 31, 2015 item	Jun. 30, 2015 USD ($) item	Dec. 31, 2015 item	Jun. 30, 2015 USD ($) item	Dec. 31, 2014 USD ($)	Jun. 30, 2014 USD ($)
Subsequent events
Loans | $				$ 73,055		$ 73,055	$ 61,934	$ 56,407
14 Branches and ATM Locations
Subsequent events
Number of consolidating or selling branches and ATM locations				8		14
Bank of America | South Carolina
Subsequent events
Number of branches		12
Bank of America | Georgia
Subsequent events
Number of branches		1
Subsequent event | 14 Branches and ATM Locations
Subsequent events
Number of consolidating or selling branches and ATM locations					6
Subsequent event | Contract for sale of two of the 14 branches
Subsequent events
Number of branches			2
Deposit premium to be received (as a percent)			3.50%
Number of days average closing balance of deposits prior to closing			30 days
Subsequent event | Bank of America
Subsequent events
New markets	6
Overlapping markets	3
Deposit premium to be paid (as a percent)	5.50%
Number of days average closing balance of deposits prior to closing	30 days