Premises and Equipment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Premises and equipment [Abstract]
Premises and equipment, gross	$ 37,797		$ 36,304
Less accumulated depreciation	16,755		16,407
Premises and equipment, net	21,042		19,897
Depreciation charged	347	341
Land [Member]
Premises and equipment [Abstract]
Premises and equipment, gross	5,622		5,354
Buildings [Member]
Premises and equipment [Abstract]
Premises and equipment, gross	19,637		18,778
Equipment [Member]
Premises and equipment [Abstract]
Premises and equipment, gross	12,490		12,172
Construction in Progress [Member]
Premises and equipment [Abstract]
Premises and equipment, gross	$ 48		$ 0