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Allowance for Loan Losses, by class of loan (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | $ 12,736,921 | $ 15,649,594 | $ 28,280,077
Charge-Offs | (6,227,716) | (10,454,175) | (22,850,673)
Recoveries | 811,781 | 756,735 | 1,970,190
Provision | 4,485,000 | 6,784,767 | 8,250,000
Ending Balance | 11,805,986 | 12,736,921 | 15,649,594
Loan balance for reviewing high risk loans minimum | 250,000 | 50,000 |
Financing receivable transfer from individual impairment review to collective impairment review | 4,100,000 |  |
Impaired loans below the $250,000 review threshold | 2,820,000 |  |
Amount of impaired loans below old individual impairment review level of $50,000 |  | 1,030,000 | 995,000
Substandard [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Substandard loans, not classified as impaired | 6,700,000 | 10,800,000 |
Specific allocation associated with Substandard loans | 261,000 | 899,000 |
Commercial [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 981,021 | 1,070,560 | 4,414,817
Charge-Offs | (120,690) | (653,389) | (841,887)
Recoveries | 55,829 | 139,802 | 127,490
Provision | 100,913 | 424,048 | (2,629,860)
Ending Balance | 1,017,073 | 981,021 | 1,070,560
Agricultural [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 296,175 | 297,168 | 698,637
Charge-Offs | (34,502) | (3,028) | (455,165)
Recoveries | 6,200 | 0 | 454,453
Provision | 26,013 | 2,035 | (400,757)
Ending Balance | 293,886 | 296,175 | 297,168
Commercial Construction [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 1,890,200 | 3,122,594 | 4,126,043
Charge-Offs | (2,071,162) | (4,106,124) | (6,957,181)
Recoveries | 253,459 | 209,352 | 557,168
Provision | 1,709,682 | 2,664,378 | 5,396,564
Ending Balance | 1,782,179 | 1,890,200 | 3,122,594
Residential Construction [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 138,092 | 138,092 | 519,766
Charge-Offs | 0 | 0 | (481)
Recoveries | 0 | 0 | 0
Provision | 0 | 0 | (381,193)
Ending Balance | 138,092 | 138,092 | 138,092
Commercial Real Estate [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 5,162,839 | 6,448,064 | 8,029,525
Charge-Offs | (2,872,408) | (4,325,642) | (12,492,097)
Recoveries | 297,984 | 232,880 | 527,996
Provision | 1,790,861 | 2,807,537 | 10,382,640
Ending Balance | 4,379,276 | 5,162,839 | 6,448,064
Residential Real Estate [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 3,405,947 | 3,695,357 | 5,941,696
Charge-Offs | (706,242) | (960,620) | (1,704,887)
Recoveries | 64,583 | 47,690 | 149,173
Provision | 513,981 | 623,520 | (690,625)
Ending Balance | 3,278,269 | 3,405,947 | 3,695,357
Farmland [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 290,526 | 364,663 | 944,323
Charge-Offs | (20,977) | (224,725) | (60,447)
Recoveries | 21,762 | 4,716 | 411
Provision | 20,183 | 145,872 | (519,624)
Ending Balance | 311,494 | 290,526 | 364,663
Consumer [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 227,774 | 205,154 | 3,074,220
Charge-Offs | (397,822) | (169,249) | (222,878)
Recoveries | 93,520 | 81,956 | 145,279
Provision | 319,781 | 109,913 | (2,791,467)
Ending Balance | 243,253 | 227,774 | 205,154
Other [Member] |  |  |
Activity in allowance for loan losses, segregated by class of loan [Roll Forward] |  |  |
Beginning Balance | 344,347 | 307,942 | 531,050
Charge-Offs | (3,913) | (11,398) | (115,650)
Recoveries | 18,444 | 40,339 | 8,220
Provision | 3,586 | 7,464 | (115,678)
Ending Balance | $ 362,464 | $ 344,347 | $ 307,942

X
- Definition Amount of impaired loans below old individual impairment review level. + References No definition available. + Details
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- Definition The effect of a change in method of evaluating loans for individual impairment review. + References No definition available. + Details
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- Definition Amount of investment of impaired financing receivables below the $250,000 threshold for review and were not individually reviewed for impairment. + References No definition available. + Details
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- Definition A category of financing receivables that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the creditor will sustain some loss if the deficiencies are not corrected. + References No definition available. + Details
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- Definition A category of financing receivables that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the creditor will sustain some loss if the deficiencies are not corrected. + References No definition available. + Details
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- Definition Reflects the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 8, 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 8 -Subparagraph a(ii) -Chapter V -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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