Fair Value Measurement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2014 Minimum [Member]	Mar. 31, 2014 Maximum [Member]	Mar. 31, 2014 Recurring [Member]	Dec. 31, 2013 Recurring [Member]	Mar. 31, 2014 Recurring [Member] Level 1 [Member]	Dec. 31, 2013 Recurring [Member] Level 1 [Member]	Mar. 31, 2014 Recurring [Member] Level 2 [Member]	Dec. 31, 2013 Recurring [Member] Level 2 [Member]	Mar. 31, 2014 Recurring [Member] Level 3 [Member]	Dec. 31, 2013 Recurring [Member] Level 3 [Member]	Mar. 31, 2014 Nonrecurring [Member]	Dec. 31, 2013 Nonrecurring [Member]	Mar. 31, 2014 Nonrecurring [Member] Level 1 [Member]	Dec. 31, 2013 Nonrecurring [Member] Level 1 [Member]	Mar. 31, 2014 Nonrecurring [Member] Level 2 [Member]	Dec. 31, 2013 Nonrecurring [Member] Level 2 [Member]	Mar. 31, 2014 Nonrecurring [Member] Level 3 [Member]	Dec. 31, 2013 Nonrecurring [Member] Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Period when new appraisals are received		28 days	42 days
Discount for selling costs (in hundredths)	10.00%
Available-for-sale securities [Abstract]
U.S. Government sponsored enterprises				$ 11,166	$ 11,265	$ 0	$ 0	$ 11,166	$ 11,265	$ 0	$ 0
Obligations of state and political subdivisions				54,060	59,978	0	0	54,060	59,978	0	0
GSE mortgage-backed securities				142,945	145,965	0	0	142,945	145,965	0	0
Collateralized mortgage obligations: residential				69,350	70,887	0	0	69,350	70,887	0	0
Collateralized mortgage obligations: commercial				27,231	27,346	0	0	27,231	27,346	0	0
Other asset-backed securities				25,363	25,489	0	0	25,363	25,489	0	0
Collateralized debt obligation				1,373	735	0	0	1,373	735	0	0
Assets and Liabilities Measured on Nonrecurring Basis
Impaired loans												2,127	1,973	0	0	2,127	1,973	0	0
Other real estate												$ 6,525	$ 6,687	$ 0	$ 0	$ 6,525	$ 6,687	$ 0	$ 0