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Loans and Allowance - Risk Ratings of Loans by Categories of Loans (Details) - Loans Receivable | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) Contract | Dec. 31, 2014 USD ($) Contract | Dec. 31, 2013 USD ($) Contract | Dec. 31, 2012 USD ($)
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 263,857,691 | $ 278,230,503 | $ 274,827,478 |
Non-accrual | 3,779,749 | 2,777,904 | $ 2,713,393 |
Troubled debt restructures | $ 290,368 | $ 252,500 |  |
Number of TDRs accounts | Contract | 2 | 1 |  |
Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 252,157,084 | $ 263,761,195 | $ 261,838,072 |
Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 6,782,290 | 8,126,375 | 8,213,339 |
Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 4,221,478 | 6,017,072 | 4,710,368 |
Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 696,839 | 162,960 | $ 65,699 |
Loss |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  | $ 162,901 |  |
Non-performing TDRs |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Troubled debt restructures |  |  |  |
Number of TDRs accounts | Contract |  |  |  |
Commercial and Industrial |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 4,539,701 | $ 3,518,752 | $ 4,172,747 |
Non-accrual |  |  | $ 14,286 |
Troubled debt restructures | $ 240,500 | $ 252,500 |  |
Number of TDRs accounts | Contract | 1 | 1 |  |
Commercial and Industrial | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 3,878,588 | $ 3,177,639 | $ 3,594,809 |
Commercial and Industrial | Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 168,113 | 88,613 | 299,152 |
Commercial and Industrial | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 493,000 | $ 252,500 | $ 278,786 |
Commercial and Industrial | Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  |  |  |
Commercial and Industrial | Loss |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  |  |  |
Commercial and Industrial | Non-performing TDRs |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Troubled debt restructures |  |  |  |
Number of TDRs accounts | Contract |  |  |  |
Commercial Real Estate |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 64,271,621 | $ 65,642,632 | $ 68,778,608 |
Non-accrual |  | $ 1,097,112 | $ 1,237,647 |
Troubled debt restructures |  |  |  |
Number of TDRs accounts | Contract |  |  |  |
Commercial Real Estate | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 58,706,189 | $ 58,837,254 | $ 59,914,422 |
Commercial Real Estate | Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 4,422,115 | 4,649,562 | 5,499,993 |
Commercial Real Estate | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 1,143,317 | $ 2,155,816 | $ 3,364,193 |
Commercial Real Estate | Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  |  |  |
Commercial Real Estate | Loss |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  |  |  |
Commercial Real Estate | Non-performing TDRs |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Troubled debt restructures |  |  |  | $ 1,369,768
Number of TDRs accounts | Contract |  |  |  |
Consumer and Indirect |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 75,302,771 | $ 84,103,142 | $ 73,230,433 |
Non-accrual | $ 596,329 | $ 515,352 | $ 338,212 |
Troubled debt restructures |  |  |  |
Number of TDRs accounts | Contract |  |  |  |
Consumer and Indirect | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 72,975,858 | $ 80,501,928 | $ 71,554,400 |
Consumer and Indirect | Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 1,652,579 | 2,555,654 | 1,102,091 |
Consumer and Indirect | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 509,211 | 882,600 | 508,243 |
Consumer and Indirect | Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 165,123 | $ 162,960 | $ 65,699 |
Consumer and Indirect | Loss |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  |  |  |
Consumer and Indirect | Non-performing TDRs |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Troubled debt restructures |  |  |  |
Number of TDRs accounts | Contract |  |  |  |
Residential Real Estate |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 119,743,598 | $ 124,965,977 | $ 128,645,690 |
Non-accrual | 3,183,420 | $ 1,165,440 | $ 1,123,248 |
Troubled debt restructures | $ 49,868 |  |  |
Number of TDRs accounts | Contract | 1 |  |  |
Residential Real Estate | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 116,596,449 | $ 121,244,374 | $ 126,774,441 |
Residential Real Estate | Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 539,483 | 832,546 | 1,312,103 |
Residential Real Estate | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 2,075,950 | $ 2,726,156 | $ 559,146 |
Residential Real Estate | Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 531,716 |  |  |
Residential Real Estate | Loss |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  | $ 162,901 |  |
Residential Real Estate | Non-performing TDRs |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Troubled debt restructures |  |  |  | $ 832,500
Number of TDRs accounts | Contract |  |  |  |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524 + Details
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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 + Details
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