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Goodwill and Other Intangible Assets (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Gross Carrying Amount	$ 33,460	$ 32,295
Accumulated Amortization	22,111	19,847
Net Carrying Amount	11,349	12,448
Core deposit intangible
Gross Carrying Amount	18,774	18,774
Accumulated Amortization	13,129	11,873
Net Carrying Amount	5,645	6,901
Customer relationships
Gross Carrying Amount	8,942	8,165
Accumulated Amortization	4,737	4,065
Net Carrying Amount	4,205	4,100
Other intangibles
Gross Carrying Amount	5,744	5,356
Accumulated Amortization	4,245	3,909
Net Carrying Amount	$ 1,499	$ 1,447