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Loans and Allowance for Loan Losses - Performing and Impaired Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | $ 871,679 | $ 813,376
All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 849,673 | 786,183
Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 22,006 | 27,193
Commercial Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 447,620 | 415,208
Commercial Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 434,418 | 400,265
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 13,202 | 14,943
Consumer Real Estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 199,704 | 187,802
Consumer Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 193,561 | 178,798
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 6,143 | 9,004
Construction and Land Development [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 98,212 | 117,869
Construction and Land Development [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 96,636 | 116,191
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,576 | 1,678
Commercial and Industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 119,782 | 85,022
Commercial and Industrial [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 118,697 | 83,454
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,085 | 1,568
Consumer and Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 6,361 | 7,475
Consumer and Other [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 6,361 | 7,475
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 0 | 0
Performing [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 847,948 | 784,168
Performing [Member] | Commercial Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 434,300 | 400,146
Performing [Member] | Consumer Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 192,628 | 177,977
Performing [Member] | Construction and Land Development [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 96,089 | 115,326
Performing [Member] | Commercial and Industrial [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 118,570 | 83,244
Performing [Member] | Consumer and Other [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 6,361 | 7,475
Impaired Loans [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,725 | 2,015
Impaired Loans [Member] | Commercial Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 118 | 119
Impaired Loans [Member] | Consumer Real Estate [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 933 | 821
Impaired Loans [Member] | Construction and Land Development [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 547 | 865
Impaired Loans [Member] | Commercial and Industrial [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 127 | 210
Impaired Loans [Member] | Consumer and Other [Member] | All Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | $ 0 | $ 0

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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. 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=82891408&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 + Details
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