Loans (Details 3) (USD $)				3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Mar. 31, 2014 Greater than	Mar. 31, 2014 Commercial	Dec. 31, 2013 Commercial	Mar. 31, 2013 Commercial	Mar. 31, 2014 Real estate - commercial	Mar. 31, 2013 Real estate - commercial	Mar. 31, 2014 Real estate - commercial Owner occupied general purpose	Dec. 31, 2013 Real estate - commercial Owner occupied general purpose	Mar. 31, 2014 Real estate - commercial Owner occupied special purpose	Dec. 31, 2013 Real estate - commercial Owner occupied special purpose	Mar. 31, 2014 Real estate - commercial Non-owner occupied general purpose	Dec. 31, 2013 Real estate - commercial Non-owner occupied general purpose	Mar. 31, 2014 Real estate - commercial Non-owner occupied special purpose	Dec. 31, 2013 Real estate - commercial Non-owner occupied special purpose	Mar. 31, 2014 Real estate - commercial Retail properties	Dec. 31, 2013 Real estate - commercial Retail properties	Mar. 31, 2014 Real estate - commercial Farm	Dec. 31, 2013 Real estate - commercial Farm	Mar. 31, 2014 Real estate - construction	Mar. 31, 2013 Real estate - construction	Mar. 31, 2014 Real estate - construction Homebuilder	Dec. 31, 2013 Real estate - construction Homebuilder	Mar. 31, 2014 Real estate - construction Land	Dec. 31, 2013 Real estate - construction Land	Mar. 31, 2014 Real estate - construction Commercial speculative	Dec. 31, 2013 Real estate - construction Commercial speculative	Mar. 31, 2014 Real estate - construction All other	Dec. 31, 2013 Real estate - construction All other	Mar. 31, 2014 Real estate - residential	Mar. 31, 2013 Real estate - residential	Mar. 31, 2014 Real estate - residential Investor	Dec. 31, 2013 Real estate - residential Investor	Mar. 31, 2014 Real estate - residential Owner occupied	Dec. 31, 2013 Real estate - residential Owner occupied	Mar. 31, 2014 Real estate - residential Revolving and junior liens	Dec. 31, 2013 Real estate - residential Revolving and junior liens	Mar. 31, 2014 Consumer	Dec. 31, 2013 Consumer	Mar. 31, 2013 Consumer	Mar. 31, 2014 All other	Dec. 31, 2013 All other	Mar. 31, 2013 All other	Mar. 31, 2014 Pass	Dec. 31, 2013 Pass	Mar. 31, 2014 Pass Commercial	Dec. 31, 2013 Pass Commercial	Mar. 31, 2014 Pass Real estate - commercial Owner occupied general purpose	Dec. 31, 2013 Pass Real estate - commercial Owner occupied general purpose	Mar. 31, 2014 Pass Real estate - commercial Owner occupied special purpose	Dec. 31, 2013 Pass Real estate - commercial Owner occupied special purpose	Mar. 31, 2014 Pass Real estate - commercial Non-owner occupied general purpose	Dec. 31, 2013 Pass Real estate - commercial Non-owner occupied general purpose	Mar. 31, 2014 Pass Real estate - commercial Non-owner occupied special purpose	Dec. 31, 2013 Pass Real estate - commercial Non-owner occupied special purpose	Mar. 31, 2014 Pass Real estate - commercial Retail properties	Dec. 31, 2013 Pass Real estate - commercial Retail properties	Mar. 31, 2014 Pass Real estate - commercial Farm	Dec. 31, 2013 Pass Real estate - commercial Farm	Mar. 31, 2014 Pass Real estate - construction Homebuilder	Dec. 31, 2013 Pass Real estate - construction Homebuilder	Mar. 31, 2014 Pass Real estate - construction Land	Dec. 31, 2013 Pass Real estate - construction Land	Mar. 31, 2014 Pass Real estate - construction Commercial speculative	Dec. 31, 2013 Pass Real estate - construction Commercial speculative	Mar. 31, 2014 Pass Real estate - construction All other	Dec. 31, 2013 Pass Real estate - construction All other	Mar. 31, 2014 Pass Real estate - residential Investor	Dec. 31, 2013 Pass Real estate - residential Investor	Mar. 31, 2014 Pass Real estate - residential Owner occupied	Dec. 31, 2013 Pass Real estate - residential Owner occupied	Mar. 31, 2014 Pass Real estate - residential Revolving and junior liens	Dec. 31, 2013 Pass Real estate - residential Revolving and junior liens	Mar. 31, 2014 Pass Consumer	Dec. 31, 2013 Pass Consumer	Mar. 31, 2014 Pass All other	Dec. 31, 2013 Pass All other	Mar. 31, 2014 Special Mention	Dec. 31, 2013 Special Mention	Mar. 31, 2014 Special Mention Commercial	Dec. 31, 2013 Special Mention Commercial	Mar. 31, 2014 Special Mention Real estate - commercial Owner occupied general purpose	Dec. 31, 2013 Special Mention Real estate - commercial Owner occupied general purpose	Mar. 31, 2014 Special Mention Real estate - commercial Owner occupied special purpose	Dec. 31, 2013 Special Mention Real estate - commercial Owner occupied special purpose	Mar. 31, 2014 Special Mention Real estate - commercial Non-owner occupied general purpose	Dec. 31, 2013 Special Mention Real estate - commercial Non-owner occupied general purpose	Mar. 31, 2014 Special Mention Real estate - commercial Non-owner occupied special purpose	Dec. 31, 2013 Special Mention Real estate - commercial Non-owner occupied special purpose	Mar. 31, 2014 Special Mention Real estate - commercial Retail properties	Dec. 31, 2013 Special Mention Real estate - commercial Retail properties	Dec. 31, 2013 Special Mention Real estate - construction Homebuilder	Dec. 31, 2013 Special Mention Real estate - construction Commercial speculative	Mar. 31, 2014 Special Mention Real estate - construction All other	Dec. 31, 2013 Special Mention Real estate - construction All other	Mar. 31, 2014 Special Mention Real estate - residential Investor	Dec. 31, 2013 Special Mention Real estate - residential Investor	Mar. 31, 2014 Special Mention Real estate - residential Revolving and junior liens	Dec. 31, 2013 Special Mention Real estate - residential Revolving and junior liens	Mar. 31, 2014 Substandard	Dec. 31, 2013 Substandard	Mar. 31, 2014 Substandard Commercial	Dec. 31, 2013 Substandard Commercial	Mar. 31, 2014 Substandard Real estate - commercial Owner occupied general purpose	Dec. 31, 2013 Substandard Real estate - commercial Owner occupied general purpose	Mar. 31, 2014 Substandard Real estate - commercial Owner occupied special purpose	Dec. 31, 2013 Substandard Real estate - commercial Owner occupied special purpose	Mar. 31, 2014 Substandard Real estate - commercial Non-owner occupied general purpose	Dec. 31, 2013 Substandard Real estate - commercial Non-owner occupied general purpose	Mar. 31, 2014 Substandard Real estate - commercial Non-owner occupied special purpose	Dec. 31, 2013 Substandard Real estate - commercial Non-owner occupied special purpose	Mar. 31, 2014 Substandard Real estate - commercial Retail properties	Dec. 31, 2013 Substandard Real estate - commercial Retail properties	Mar. 31, 2014 Substandard Real estate - construction Homebuilder	Dec. 31, 2013 Substandard Real estate - construction Homebuilder	Mar. 31, 2014 Substandard Real estate - construction Land	Dec. 31, 2013 Substandard Real estate - construction Land	Mar. 31, 2014 Substandard Real estate - construction Commercial speculative	Dec. 31, 2013 Substandard Real estate - construction Commercial speculative	Mar. 31, 2014 Substandard Real estate - construction All other	Dec. 31, 2013 Substandard Real estate - construction All other	Mar. 31, 2014 Substandard Real estate - residential Investor	Dec. 31, 2013 Substandard Real estate - residential Investor	Mar. 31, 2014 Substandard Real estate - residential Owner occupied	Dec. 31, 2013 Substandard Real estate - residential Owner occupied	Mar. 31, 2014 Substandard Real estate - residential Revolving and junior liens	Dec. 31, 2013 Substandard Real estate - residential Revolving and junior liens	Dec. 31, 2013 Substandard Consumer
Loans by risk rating
Loan commitment for inclusion in credit quality analysis				$ 50,000
Total Loans	$ 1,111,237,000	$ 1,101,256,000	$ 1,113,302,000		$ 107,548,000	$ 104,805,000	$ 92,906,000	$ 579,297,000	$ 566,349,000	$ 128,402,000	$ 121,934,000	$ 171,608,000	$ 172,459,000	$ 137,666,000	$ 138,257,000	$ 83,814,000	$ 73,986,000	$ 41,444,000	$ 37,178,000	$ 16,363,000	$ 16,419,000	$ 32,016,000	$ 40,698,000	$ 3,536,000	$ 3,683,000	$ 4,612,000	$ 4,645,000	$ 15,298,000	$ 13,148,000	$ 8,570,000	$ 7,875,000	$ 375,781,000	$ 394,599,000	$ 140,324,000	$ 148,293,000	$ 114,186,000	$ 116,960,000	$ 121,271,000	$ 124,948,000	$ 2,837,000	$ 2,760,000	$ 2,908,000	$ 13,758,000	$ 13,906,000	$ 15,842,000	$ 1,025,956,000	$ 996,251,000	$ 99,815,000	$ 96,371,000	$ 117,120,000	$ 105,683,000	$ 163,134,000	$ 162,586,000	$ 123,330,000	$ 122,844,000	$ 73,389,000	$ 59,674,000	$ 34,568,000	$ 30,059,000	$ 16,363,000	$ 16,419,000	$ 3,434,000	$ 1,745,000	$ 4,403,000	$ 4,436,000	$ 9,843,000	$ 7,674,000	$ 7,876,000	$ 7,109,000	$ 131,509,000	$ 135,136,000	$ 107,339,000	$ 109,261,000	$ 117,238,000	$ 120,589,000	$ 2,837,000	$ 2,759,000	$ 13,758,000	$ 13,906,000	$ 32,597,000	$ 42,782,000	$ 7,278,000	$ 7,953,000	$ 6,215,000	$ 9,048,000	$ 1,231,000	$ 1,968,000	$ 3,556,000	$ 1,826,000	$ 9,783,000	$ 9,840,000	$ 2,975,000	$ 2,989,000	$ 1,770,000	$ 3,561,000	$ 30,000	$ 32,000	$ 1,141,000	$ 3,407,000	$ 388,000	$ 388,000	$ 52,684,000	$ 62,223,000	$ 455,000	$ 481,000	$ 5,067,000	$ 7,203,000	$ 7,243,000	$ 7,905,000	$ 10,780,000	$ 13,587,000	$ 642,000	$ 4,472,000	$ 3,901,000	$ 4,130,000	$ 102,000	$ 168,000	$ 209,000	$ 209,000	$ 5,455,000	$ 1,913,000	$ 664,000	$ 734,000	$ 7,674,000	$ 9,750,000	$ 6,847,000	$ 7,699,000	$ 3,645,000	$ 3,971,000	$ 1,000