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Loans and Allowance for Loan Losses (Details Narrative) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Impaired Financing Receivable Loan Balance Charged Off |  | $ 9,300 |  | $ 6,700 |  |  |
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans |  | 79 |  | 43 |  |  |
Impaired Financing Receivable, Recorded Investment, Total |  | 9,259 |  | 6,728 |  |  |
Loans and Leases Receivable, Impaired, Commitment to Lend |  | 32 |  |  |  |  |
Provision For Loan Losses Reversal |  | 30 |  |  |  |  |
Loans and Leases Receivable, Allowance | $ 5,507 | 5,379 | $ 5,507 | 5,344 | $ 5,326 | $ 5,652 | $ 5,922
Trouble Debt Restructurings [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Impaired Financing Receivable Loan Balance Charged Off | 2 |  | 215 |  |  |  |
Loans Receivable, Gross, Commercial, Agricultural |  | 15 |  |  |  |  |
Loans and Leases Receivable, Allowance |  | 50 |  | 80 |  |  |
Commercial Real Estate [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans Receivable, Gross, Commercial, Real Estate, Total |  | 11 |  |  |  |  |
Loans and Leases Receivable, Allowance | 1,736 | 1,720 | 1,736 | $ 1,777 | $ 1,709 | 1,776 | $ 1,740
Residential Real Estate [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans Receivable, Gross, Commercial, Real Estate, Total |  | 25 |  |  |  | 188 |
Agriculture Loans [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Impaired Financing Receivable Loan Balance Charged Off |  | 215 |  |  |  |  |
Loans Receivable, Gross, Commercial, Agricultural | $ 302 | 87 | $ 302 |  |  |  |
Impaired Financing Receivable, Recorded Investment, Total |  |  |  |  |  |  |
Commercial Loan [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans Receivable, Gross, Commercial, Real Estate, Total |  |  |  |  |  | $ 8 |

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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + 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 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -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 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 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=82894903&loc=d3e15032-111544 + Details
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