Intangible Assets and Goodwill (Details 2) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Core deposit intangibles and other intangible assets
Less: accumulated amortization	$ (8,570)	$ (8,130)
Net carrying amount	1,000	1,690
Core deposit intangibles
Core deposit intangibles and other intangible assets
Gross carrying amount	9,566	9,566
Less: accumulated amortization	(8,569)	(7,888)
Net carrying amount	997	1,678
Other intangibles
Core deposit intangibles and other intangible assets
Gross carrying amount	0	254
Less: accumulated amortization	0	(241)
Net carrying amount	$ 0	$ 13