Acquired Credit Impaired Loans, Accretable Yield Related To Acquired Credit Impaired Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable discount at beginning of year	$ 1,503	$ 2,674
Accretable discount acquired during period	0	413
Reclass from nonaccretable discount to accretable discount	307	943
Less disposals	(3)	(857)
Less accretion	(439)	(1,404)
Accretable discount at end of period	$ 1,368	$ 1,769