Parent Company Financial Information (Schedule of Condensed Statements of Financial Condition) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash	$ 17,149	$ 32,877
Investment securities	201,312	143,957
Other assets	3,491	2,656
Total assets	639,568	607,099
Junior subordinated debentures	9,279	9,279
Other liabilities	5,154	4,407
Total liabilities	582,863	556,043
Stockholders' equity	56,705	51,056	45,208
Total liabilities and stockholders' equity	639,568	607,099
Parent Company [Member]
Cash	222	331
Investment securities	14	12
Investment in subsidiary	65,945	60,311
Other assets	118	125
Total assets	66,299	60,779
Junior subordinated debentures	9,279	9,279
Other liabilities	315	444
Total liabilities	9,594	9,723
Stockholders' equity	56,705	51,056
Total liabilities and stockholders' equity	$ 66,299	$ 60,779