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Loans and Allowance for Loan Losses (Details 2) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Summary of allowance for loan losses and recorded investment in loans based on portfolio segment and impairment method |  |  |
Beginning balance | $ 7,725 | $ 6,990 | $ 6,771
Charge offs | (231) | (501) | (952)
Recoveries | 36 | 486 | 71
Provision | 400 | 750 | 1,100
Ending Balance | 7,930 | 7,725 | 6,990
Allowance: Ending balance: individually evaluated for impairment | 329 | 300 | 1,963
Allowance: Ending balance: collectively evaluated for impairment | 7,601 | 7,425 | 5,027
Loans: Ending balance individually evaluated for impairment | 3,412 | 3,795 | 8,057
Loans: Ending balance collectively evaluated for impairment | 692,716 | 640,303 | 549,558
Commercial & Industrial [Member] |  |  |
Summary of allowance for loan losses and recorded investment in loans based on portfolio segment and impairment method |  |  |
Beginning balance | 1,204 | 914 | 1,630
Charge offs | (50) | (135) | (497)
Recoveries | 5 | 408 | 26
Provision | (336) | 17 | (245)
Ending Balance | 823 | 1,204 | 914
Allowance: Ending balance: individually evaluated for impairment |  | 50 |
Allowance: Ending balance: collectively evaluated for impairment | 823 | 1,154 | 914
Loans: Ending balance individually evaluated for impairment |  | 50 | 126
Loans: Ending balance collectively evaluated for impairment | 101,554 | 108,702 | 86,416
Commercial RE & Construction [Member] |  |  |
Summary of allowance for loan losses and recorded investment in loans based on portfolio segment and impairment method |  |  |
Beginning balance | 3,321 | 3,886 | 2,857
Charge offs | (26) | (241) | (303)
Recoveries | 2 | 5 | 3
Provision | 482 | (329) | 1,329
Ending Balance | 3,779 | 3,321 | 3,886
Allowance: Ending balance: individually evaluated for impairment | 146 | 119 | 1,759
Allowance: Ending balance: collectively evaluated for impairment | 3,633 | 3,202 | 2,127
Loans: Ending balance individually evaluated for impairment | 1,385 | 1,578 | 5,754
Loans: Ending balance collectively evaluated for impairment | 330,769 | 282,506 | 236,454
Agricultural & Farmland [Member] |  |  |
Summary of allowance for loan losses and recorded investment in loans based on portfolio segment and impairment method |  |  |
Beginning balance | 347 | 204 | 208
Charge offs |  |  |
Recoveries | 5 | 12 | 3
Provision | 153 | 131 | (7)
Ending Balance | 505 | 347 | 204
Allowance: Ending balance: individually evaluated for impairment |  |  |
Allowance: Ending balance: collectively evaluated for impairment | 505 | 347 | 204
Loans: Ending balance individually evaluated for impairment |  |  |
Loans: Ending balance collectively evaluated for impairment | 51,947 | 52,475 | 43,835
Residential Real Estate [Member] |  |  |
Summary of allowance for loan losses and recorded investment in loans based on portfolio segment and impairment method |  |  |
Beginning balance | 1,963 | 1,312 | 1,308
Charge offs | (61) | (20) | (56)
Recoveries | 6 | 2 | 29
Provision | 221 | 669 | 31
Ending Balance | 2,129 | 1,963 | 1,312
Allowance: Ending balance: individually evaluated for impairment | 178 | 124 | 167
Allowance: Ending balance: collectively evaluated for impairment | 1,951 | 1,839 | 1,145
Loans: Ending balance individually evaluated for impairment | 1,830 | 1,919 | 1,713
Loans: Ending balance collectively evaluated for impairment | 149,024 | 140,533 | 129,093
Consumer & Other [Member] |  |  |
Summary of allowance for loan losses and recorded investment in loans based on portfolio segment and impairment method |  |  |
Beginning balance | 890 | 674 | 768
Charge offs | (94) | (105) | (96)
Recoveries | 18 | 59 | 10
Provision | (120) | 262 | (8)
Ending Balance | 694 | 890 | 674
Allowance: Ending balance: individually evaluated for impairment | 5 | 7 | 37
Allowance: Ending balance: collectively evaluated for impairment | 689 | 883 | 637
Loans: Ending balance individually evaluated for impairment | 197 | 248 | 464
Loans: Ending balance collectively evaluated for impairment | $ 59,422 | $ 56,087 | $ 53,760

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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