Loans (Details 3) (USD $)
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9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Sep. 30, 2013
Greater than
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Sep. 30, 2013
Commercial
|
Dec. 31, 2012
Commercial
|
Sep. 30, 2012
Commercial
|
Sep. 30, 2013
Real estate - commercial
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Sep. 30, 2012
Real estate - commercial
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Sep. 30, 2013
Real estate - commercial
Owner occupied general purpose
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Dec. 31, 2012
Real estate - commercial
Owner occupied general purpose
|
Sep. 30, 2013
Real estate - commercial
Owner occupied special purpose
|
Dec. 31, 2012
Real estate - commercial
Owner occupied special purpose
|
Sep. 30, 2013
Real estate - commercial
Non-owner occupied general purpose
|
Dec. 31, 2012
Real estate - commercial
Non-owner occupied general purpose
|
Sep. 30, 2013
Real estate - commercial
Non-owner occupied special purpose
|
Dec. 31, 2012
Real estate - commercial
Non-owner occupied special purpose
|
Sep. 30, 2013
Real estate - commercial
Retail properties
|
Dec. 31, 2012
Real estate - commercial
Retail properties
|
Sep. 30, 2013
Real estate - commercial
Farm
|
Dec. 31, 2012
Real estate - commercial
Farm
|
Sep. 30, 2013
Real estate - construction
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Sep. 30, 2012
Real estate - construction
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Sep. 30, 2013
Real estate - construction
Homebuilder
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Dec. 31, 2012
Real estate - construction
Homebuilder
|
Sep. 30, 2013
Real estate - construction
Land
|
Dec. 31, 2012
Real estate - construction
Land
|
Sep. 30, 2013
Real estate - construction
Commercial speculative
|
Dec. 31, 2012
Real estate - construction
Commercial speculative
|
Sep. 30, 2013
Real estate - construction
All other
|
Dec. 31, 2012
Real estate - construction
All other
|
Sep. 30, 2013
Real estate - residential
|
Sep. 30, 2012
Real estate - residential
|
Sep. 30, 2013
Real estate - residential
Investor
|
Dec. 31, 2012
Real estate - residential
Investor
|
Sep. 30, 2013
Real estate - residential
Owner occupied
|
Dec. 31, 2012
Real estate - residential
Owner occupied
|
Sep. 30, 2013
Real estate - residential
Revolving and junior liens
|
Dec. 31, 2012
Real estate - residential
Revolving and junior liens
|
Sep. 30, 2013
Consumer
|
Dec. 31, 2012
Consumer
|
Sep. 30, 2012
Consumer
|
Sep. 30, 2013
All other
|
Dec. 31, 2012
All other
|
Sep. 30, 2012
All other
|
Sep. 30, 2013
Pass
|
Dec. 31, 2012
Pass
|
Sep. 30, 2013
Pass
Commercial
|
Dec. 31, 2012
Pass
Commercial
|
Sep. 30, 2013
Pass
Real estate - commercial
Owner occupied general purpose
|
Dec. 31, 2012
Pass
Real estate - commercial
Owner occupied general purpose
|
Sep. 30, 2013
Pass
Real estate - commercial
Owner occupied special purpose
|
Dec. 31, 2012
Pass
Real estate - commercial
Owner occupied special purpose
|
Sep. 30, 2013
Pass
Real estate - commercial
Non-owner occupied general purpose
|
Dec. 31, 2012
Pass
Real estate - commercial
Non-owner occupied general purpose
|
Sep. 30, 2013
Pass
Real estate - commercial
Non-owner occupied special purpose
|
Dec. 31, 2012
Pass
Real estate - commercial
Non-owner occupied special purpose
|
Sep. 30, 2013
Pass
Real estate - commercial
Retail properties
|
Dec. 31, 2012
Pass
Real estate - commercial
Retail properties
|
Sep. 30, 2013
Pass
Real estate - commercial
Farm
|
Dec. 31, 2012
Pass
Real estate - commercial
Farm
|
Sep. 30, 2013
Pass
Real estate - construction
Homebuilder
|
Dec. 31, 2012
Pass
Real estate - construction
Homebuilder
|
Sep. 30, 2013
Pass
Real estate - construction
Land
|
Dec. 31, 2012
Pass
Real estate - construction
Land
|
Sep. 30, 2013
Pass
Real estate - construction
Commercial speculative
|
Dec. 31, 2012
Pass
Real estate - construction
Commercial speculative
|
Sep. 30, 2013
Pass
Real estate - construction
All other
|
Dec. 31, 2012
Pass
Real estate - construction
All other
|
Sep. 30, 2013
Pass
Real estate - residential
Investor
|
Dec. 31, 2012
Pass
Real estate - residential
Investor
|
Sep. 30, 2013
Pass
Real estate - residential
Owner occupied
|
Dec. 31, 2012
Pass
Real estate - residential
Owner occupied
|
Sep. 30, 2013
Pass
Real estate - residential
Revolving and junior liens
|
Dec. 31, 2012
Pass
Real estate - residential
Revolving and junior liens
|
Sep. 30, 2013
Pass
Consumer
|
Dec. 31, 2012
Pass
Consumer
|
Sep. 30, 2013
Pass
All other
|
Dec. 31, 2012
Pass
All other
|
Sep. 30, 2013
Special Mention
|
Dec. 31, 2012
Special Mention
|
Sep. 30, 2013
Special Mention
Commercial
|
Dec. 31, 2012
Special Mention
Commercial
|
Sep. 30, 2013
Special Mention
Real estate - commercial
Owner occupied general purpose
|
Dec. 31, 2012
Special Mention
Real estate - commercial
Owner occupied general purpose
|
Sep. 30, 2013
Special Mention
Real estate - commercial
Owner occupied special purpose
|
Dec. 31, 2012
Special Mention
Real estate - commercial
Owner occupied special purpose
|
Sep. 30, 2013
Special Mention
Real estate - commercial
Non-owner occupied general purpose
|
Dec. 31, 2012
Special Mention
Real estate - commercial
Non-owner occupied general purpose
|
Sep. 30, 2013
Special Mention
Real estate - commercial
Non-owner occupied special purpose
|
Dec. 31, 2012
Special Mention
Real estate - commercial
Non-owner occupied special purpose
|
Sep. 30, 2013
Special Mention
Real estate - commercial
Retail properties
|
Dec. 31, 2012
Special Mention
Real estate - commercial
Retail properties
|
Sep. 30, 2013
Special Mention
Real estate - commercial
Farm
|
Dec. 31, 2012
Special Mention
Real estate - commercial
Farm
|
Sep. 30, 2013
Special Mention
Real estate - construction
Homebuilder
|
Dec. 31, 2012
Special Mention
Real estate - construction
Homebuilder
|
Sep. 30, 2013
Special Mention
Real estate - construction
Commercial speculative
|
Sep. 30, 2013
Special Mention
Real estate - construction
All other
|
Dec. 31, 2012
Special Mention
Real estate - construction
All other
|
Sep. 30, 2013
Special Mention
Real estate - residential
Investor
|
Dec. 31, 2012
Special Mention
Real estate - residential
Investor
|
Sep. 30, 2013
Special Mention
Real estate - residential
Owner occupied
|
Dec. 31, 2012
Special Mention
Real estate - residential
Owner occupied
|
Sep. 30, 2013
Special Mention
Real estate - residential
Revolving and junior liens
|
Dec. 31, 2012
Special Mention
Real estate - residential
Revolving and junior liens
|
Dec. 31, 2012
Special Mention
All other
|
Sep. 30, 2013
Substandard
|
Dec. 31, 2012
Substandard
|
Sep. 30, 2013
Substandard
Commercial
|
Dec. 31, 2012
Substandard
Commercial
|
Sep. 30, 2013
Substandard
Real estate - commercial
Owner occupied general purpose
|
Dec. 31, 2012
Substandard
Real estate - commercial
Owner occupied general purpose
|
Sep. 30, 2013
Substandard
Real estate - commercial
Owner occupied special purpose
|
Dec. 31, 2012
Substandard
Real estate - commercial
Owner occupied special purpose
|
Sep. 30, 2013
Substandard
Real estate - commercial
Non-owner occupied general purpose
|
Dec. 31, 2012
Substandard
Real estate - commercial
Non-owner occupied general purpose
|
Sep. 30, 2013
Substandard
Real estate - commercial
Non-owner occupied special purpose
|
Dec. 31, 2012
Substandard
Real estate - commercial
Non-owner occupied special purpose
|
Sep. 30, 2013
Substandard
Real estate - commercial
Retail properties
|
Dec. 31, 2012
Substandard
Real estate - commercial
Retail properties
|
Dec. 31, 2012
Substandard
Real estate - commercial
Farm
|
Sep. 30, 2013
Substandard
Real estate - construction
Homebuilder
|
Dec. 31, 2012
Substandard
Real estate - construction
Homebuilder
|
Sep. 30, 2013
Substandard
Real estate - construction
Land
|
Dec. 31, 2012
Substandard
Real estate - construction
Land
|
Sep. 30, 2013
Substandard
Real estate - construction
Commercial speculative
|
Dec. 31, 2012
Substandard
Real estate - construction
Commercial speculative
|
Sep. 30, 2013
Substandard
Real estate - construction
All other
|
Dec. 31, 2012
Substandard
Real estate - construction
All other
|
Sep. 30, 2013
Substandard
Real estate - residential
Investor
|
Dec. 31, 2012
Substandard
Real estate - residential
Investor
|
Sep. 30, 2013
Substandard
Real estate - residential
Owner occupied
|
Dec. 31, 2012
Substandard
Real estate - residential
Owner occupied
|
Sep. 30, 2013
Substandard
Real estate - residential
Revolving and junior liens
|
Dec. 31, 2012
Substandard
Real estate - residential
Revolving and junior liens
|
Sep. 30, 2013
Substandard
Consumer
|
Dec. 31, 2012
Substandard
Consumer
|
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Loans by risk rating | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loan commitment for inclusion in credit quality analysis | $ 50,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Total Loans | $ 1,077,640,000 | $ 1,150,050,000 | $ 1,208,289,000 | $ 98,026,000 | $ 93,001,000 | $ 84,667,000 | $ 554,874,000 | $ 621,715,000 | $ 113,246,000 | $ 127,111,000 | $ 169,259,000 | $ 161,044,000 | $ 135,357,000 | $ 143,299,000 | $ 76,033,000 | $ 74,080,000 | $ 44,885,000 | $ 48,264,000 | $ 16,094,000 | $ 25,889,000 | $ 30,996,000 | $ 48,606,000 | $ 4,731,000 | $ 6,324,000 | $ 4,849,000 | $ 3,001,000 | $ 12,345,000 | $ 17,342,000 | $ 9,071,000 | $ 15,500,000 | $ 376,859,000 | $ 436,837,000 | $ 130,551,000 | $ 150,491,000 | $ 118,998,000 | $ 124,200,000 | $ 127,310,000 | $ 139,852,000 | $ 2,570,000 | $ 3,101,000 | $ 3,167,000 | $ 14,315,000 | $ 17,551,000 | $ 13,297,000 | $ 964,739,000 | $ 978,118,000 | $ 89,051,000 | $ 88,071,000 | $ 97,309,000 | $ 113,118,000 | $ 159,678,000 | $ 134,152,000 | $ 118,741,000 | $ 105,192,000 | $ 61,874,000 | $ 68,682,000 | $ 35,833,000 | $ 32,715,000 | $ 14,607,000 | $ 21,262,000 | $ 1,216,000 | $ 1,318,000 | $ 4,640,000 | $ 2,747,000 | $ 5,232,000 | $ 7,122,000 | $ 8,289,000 | $ 14,607,000 | $ 116,627,000 | $ 123,876,000 | $ 111,323,000 | $ 110,858,000 | $ 123,435,000 | $ 133,992,000 | $ 2,569,000 | $ 3,075,000 | $ 14,315,000 | $ 17,331,000 | $ 43,959,000 | $ 55,688,000 | $ 8,711,000 | $ 3,867,000 | $ 8,560,000 | $ 2,995,000 | $ 1,480,000 | $ 9,036,000 | $ 1,574,000 | $ 14,273,000 | $ 9,893,000 | $ 3,911,000 | $ 3,006,000 | $ 1,873,000 | $ 1,487,000 | $ 2,110,000 | $ 1,770,000 | $ 2,196,000 | $ 3,579,000 | $ 34,000 | $ 37,000 | $ 3,282,000 | $ 14,608,000 | $ 383,000 | $ 396,000 | $ 200,000 | $ 166,000 | $ 220,000 | $ 68,942,000 | $ 116,244,000 | $ 264,000 | $ 1,063,000 | $ 7,377,000 | $ 10,998,000 | $ 8,101,000 | $ 17,856,000 | $ 15,042,000 | $ 23,834,000 | $ 4,266,000 | $ 1,487,000 | $ 6,046,000 | $ 13,676,000 | $ 2,517,000 | $ 1,745,000 | $ 2,810,000 | $ 209,000 | $ 254,000 | $ 3,534,000 | $ 10,220,000 | $ 748,000 | $ 856,000 | $ 10,642,000 | $ 12,007,000 | $ 7,292,000 | $ 12,946,000 | $ 3,675,000 | $ 5,694,000 | $ 1,000 | $ 26,000 |