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Loans and Allowance for Loan Losses - Schedule of Past Due Financing Receivables (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing | 4,282 | 758
Loans, Non-accrual loans | 2,545 | 2,746
Loan, Total past due and non-accrual loans | 6,827 | 3,504
Loan, Total loans not past due | $ 421,199 | $ 422,265
Percent of gross loans, 30-59 days delinquent and accruing | 0.59% | 0.09%
Percent of gross loans, 60-89 days delinquent and accruing | 0.41% | 0.09%
Percent of gross loans, 90 days or more delinquent and accruing | 0.00% | 0.00%
Percentage of gross loans, Total past due loans accruing | 1.00% | 0.18%
Percent of gross loans, Non-accrual loans | 0.59% | 0.64%
Percentage of Total past due and non-accrual loans | 1.59% | 0.82%
Percentage of Total loans not past due | 98.41% | 99.18%
30-59Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | $ 2,532 | $ 362
60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 1,750 | 396
Commercial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing | 1,491 | 18
Loans, Non-accrual loans | 323 | 342
Loan, Total past due and non-accrual loans | 1,814 | 360
Loan, Total loans not past due | 49,817 | 54,146
Commercial [Member] | 30-59Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 176 | 13
Commercial [Member] | 60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 1,315 | 5
Agriculture [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing | 109 | 55
Loans, Non-accrual loans | 868 | 838
Loan, Total past due and non-accrual loans | 977 | 893
Loan, Total loans not past due | 78,333 | 77,431
Agriculture [Member] | 30-59Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 49 | 55
Agriculture [Member] | 60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 60 |
Municipal [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing |  |
Loans, Non-accrual loans |  |
Loan, Total past due and non-accrual loans |  |
Loan, Total loans not past due | 3,593 | 3,884
Municipal [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Municipal [Member] | 60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Consumer Loan [Member] | 30-59Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 36 | 79
Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing | 53 | 82
Loans, Non-accrual loans | 36 | 72
Loan, Total past due and non-accrual loans | 89 | 154
Loan, Total loans not past due | 21,314 | 20,117
Consumer [Member] | 60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 17 | 3
One-To-Four Family Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing | 616 | 603
Loans, Non-accrual loans | 557 | 595
Loan, Total past due and non-accrual loans | 1,173 | 1,198
Loan, Total loans not past due | 137,759 | 135,648
One-To-Four Family Residential Real Estate [Member] | 30-59Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 300 | 215
One-To-Four Family Residential Real Estate [Member] | 60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 316 | 388
Construction and Land [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing |  |
Loans, Non-accrual loans | 692 | 599
Loan, Total past due and non-accrual loans | 692 | 599
Loan, Total loans not past due | 15,865 | 13,139
Construction and Land [Member] | 30-59Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Construction and Land [Member] | 60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, 90 days or more delinquent and accruing |  |
Loans, Total past due loans accruing | 2,013 |
Loans, Non-accrual loans | 69 | 300
Loan, Total past due and non-accrual loans | 2,082 | 300
Loan, Total loans not past due | 114,518 | 117,900
Commercial Real Estate [Member] | 30-59Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 1,971 |
Commercial Real Estate [Member] | 60-89 Days Delinquent and Accruing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | $ 42 |

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