Loans Accretable Yield Rollforward (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning balance	$ 3,172
Reclassification from nonaccretable to accretable	2,074
Accretion	(1,322)
Ending balance	7,535
NB&T Financial Group, Inc.
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Ending balance	$ 3,611