Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill associated with the Company's purchase of National Associates, Inc. and Farmers Trust Company	$ 35,090		$ 35,090
Aggregate amortization expense	$ 337	$ 167