Parent Company (Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Other assets	$ 21,233	$ 24,769
Total assets	1,723,464	1,725,469
Other liabilities	7,468	8,946
Shareholders' equity	125,821	119,611	118,221	109,537
Total liabilities and shareholders' equity	1,723,464	1,725,469
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Investment in subsidiaries	144,533	137,810
Cash	2,197	2,797
Other assets	323	461
Total assets	147,053	141,068
Other liabilities	613	838
Long term debt	20,619	20,619
Shareholders' equity	125,821	119,611
Total liabilities and shareholders' equity	$ 147,053	$ 141,068