Intangible Assets (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of core deposit premiums	$ 1,407,000	$ 1,407,000	$ 896,000
Unpaid principal balance of mortgage loans serviced for others (unconsolidated)	190,200,000	65,100,000
Mortgage servicing rights, fair value	$ 1,600,000	$ 700,000