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Loans and Allowance for Loan Losses (Details 2) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | $ 369,000 | $ 349,304 | $ 346,113
Agricultural [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 44,614 | 40,232 | 41,098
Agricultural [Member] | Risk ratings 1 and 2 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 12,005 | 10,416 |
Agricultural [Member] | Risk rating 3 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 23,852 | 25,189 |
Agricultural [Member] | Risk rating 4 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 7,505 | 3,086 |
Agricultural [Member] | Risk rating 5 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 726 | 1,491 |
Agricultural [Member] | Risk rating 6 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 526 | 50 |
Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 96,088 | 94,347 | 88,062
Commercial and Industrial [Member] | Risk ratings 1 and 2 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 12,135 | 10,480 |
Commercial and Industrial [Member] | Risk rating 3 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 56,714 | 66,921 |
Commercial and Industrial [Member] | Risk rating 4 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 25,895 | 16,169 |
Commercial and Industrial [Member] | Risk rating 5 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 1,267 | 574 |
Commercial and Industrial [Member] | Risk rating 6 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 77 | 129 |
Commercial and Industrial [Member] | Risk rating 7 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans |  | 74 |
Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 110,762 | 97,736 | $ 99,807
Commercial Real Estate [Member] | Risk ratings 1 and 2 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 8,013 | 3,875 |
Commercial Real Estate [Member] | Risk rating 3 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 59,343 | 57,540 |
Commercial Real Estate [Member] | Risk rating 4 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 39,641 | 29,826 |
Commercial Real Estate [Member] | Risk rating 5 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | 1,867 | 3,776 |
Commercial Real Estate [Member] | Risk rating 6 [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Risk rated loans | $ 1,898 | $ 2,719 |

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes 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 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522 + Details
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