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Loan and Allowance for Loan Losses (Tables) | 9 Months Ended
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Sep. 30, 2017
Loans And Leases Receivable Disclosure [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  |  |  |  |  |  | September 30, |  |  | December 31,
(In thousands) |  |  | 2017 |  |  | 2016
Commercial and industrial |  | $ | 50,101 |  | $ | 49,850
Construction and land development |  |  | 47,455 |  |  | 41,650
Commercial real estate: |  |  |  |  |  |
| Owner occupied |  |  | 41,633 |  |  | 49,745
| Multi-family |  |  | 47,794 |  |  | 46,998
| Other |  |  | 142,953 |  |  | 123,696
|  | Total commercial real estate |  |  | 232,380 |  |  | 220,439
Residential real estate: |  |  |  |  |  |
| Consumer mortgage |  |  | 63,056 |  |  | 65,564
| Investment property |  |  | 47,103 |  |  | 45,291
|  | Total residential real estate |  |  | 110,159 |  |  | 110,855
Consumer installment |  |  | 9,877 |  |  | 8,712
|  | Total loans |  |  | 449,972 |  |  | 431,506
Less: unearned income |  |  | (594) |  |  | (560)
|  | Loans, net of unearned income |  | $ | 449,378 |  | $ | 430,946
Past Due Financing Receivables [Table Text Block] |
|  |  |  |  |  |  |  |  | Accruing | Accruing | Total |  |  |  |
|  |  |  |  |  |  |  |  | 30-89 Days | Greater than | Accruing | Non- |  |  | Total
(In thousands) |  | Current | Past Due | 90 days | Loans | Accrual |  |  | Loans
September 30, 2017: |  |  |  |  |  |  |  |  |  |
Commercial and industrial |  | $ | 50,004 | 64 | — | 50,068 | 33 |  | $ | 50,101
Construction and land development |  |  | 47,280 | 175 | — | 47,455 | — |  |  | 47,455
Commercial real estate: |  |  |  |  |  |  |  |  |  |
| Owner occupied |  |  | 41,633 | — | — | 41,633 | — |  |  | 41,633
| Multi-family |  |  | 47,794 | — | — | 47,794 | — |  |  | 47,794
| Other |  |  | 140,453 | — | — | 140,453 | 2,500 |  |  | 142,953
|  | Total commercial real estate |  |  | 229,880 | — | — | 229,880 | 2,500 |  |  | 232,380
Residential real estate: |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  |  | 62,300 | 403 | — | 62,703 | 353 |  |  | 63,056
| Investment property |  |  | 46,993 | 110 | — | 47,103 | — |  |  | 47,103
|  | Total residential real estate |  |  | 109,293 | 513 | — | 109,806 | 353 |  |  | 110,159
Consumer installment |  |  | 9,823 | 33 | 5 | 9,861 | 16 |  |  | 9,877
|  | Total |  | $ | 446,280 | 785 | 5 | 447,070 | 2,902 |  | $ | 449,972
December 31, 2016: |  |  |  |  |  |  |  |  |  |
Commercial and industrial |  | $ | 49,747 | 66 | — | 49,813 | 37 |  | $ | 49,850
Construction and land development |  |  | 41,223 | 395 | — | 41,618 | 32 |  |  | 41,650
Commercial real estate: |  |  |  |  |  |  |  |  |  |
| Owner occupied |  |  | 49,564 | 43 | — | 49,607 | 138 |  |  | 49,745
| Multi-family |  |  | 46,998 | — | — | 46,998 | — |  |  | 46,998
| Other |  |  | 121,608 | 199 | — | 121,807 | 1,889 |  |  | 123,696
|  | Total commercial real estate |  |  | 218,170 | 242 | — | 218,412 | 2,027 |  |  | 220,439
Residential real estate: |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  |  | 64,059 | 1,282 | — | 65,341 | 223 |  |  | 65,564
| Investment property |  |  | 45,243 | 19 | — | 45,262 | 29 |  |  | 45,291
|  | Total residential real estate |  |  | 109,302 | 1,301 | — | 110,603 | 252 |  |  | 110,855
Consumer installment |  |  | 8,652 | 38 | — | 8,690 | 22 |  |  | 8,712
|  | Total |  | $ | 427,094 | 2,042 | — | 429,136 | 2,370 |  | $ | 431,506
Allowance for Credit Losses on Financing Receivables [Table Text Block] |
|  |  | September 30, 2017
(In thousands) | Commercial and industrial |  | Construction and land development |  | Commercial real estate |  | Residential real estate |  | Consumer installment |  |  |  | Total
Quarter ended: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 677 |  | 874 |  | 2,121 |  | 1,119 |  | 174 |  |  | $ | 4,965
Charge-offs |  | (449) |  | — |  | — |  | (30) |  | (10) |  |  |  | (489)
Recoveries |  | 39 |  | 133 |  | — |  | 20 |  | 2 |  |  |  | 194
| Net (charge-offs) recoveries |  | (410) |  | 133 |  | — |  | (10) |  | (8) |  |  |  | (295)
Provision for loan losses |  | 237 |  | (156) |  | (60) |  | (32) |  | 11 |  |  |  | —
Ending balance | $ | 504 |  | 851 |  | 2,061 |  | 1,077 |  | 177 |  |  | $ | 4,670
Nine months ended: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 540 |  | 812 |  | 2,071 |  | 1,107 |  | 113 |  |  | $ | 4,643
Charge-offs |  | (449) |  | — |  | — |  | (108) |  | (16) |  |  |  | (573)
Recoveries |  | 45 |  | 347 |  | — |  | 97 |  | 11 |  |  |  | 500
| Net (charge-offs) recoveries |  | (404) |  | 347 |  | — |  | (11) |  | (5) |  |  |  | (73)
Provision for loan losses |  | 368 |  | (308) |  | (10) |  | (19) |  | 69 |  |  |  | 100
Ending balance | $ | 504 |  | 851 |  | 2,061 |  | 1,077 |  | 177 |  |  | $ | 4,670
|  |  | September 30, 2016
(In thousands) | Commercial and industrial |  | Construction and land development |  | Commercial real estate |  | Residential real estate |  | Consumer installment |  |  |  | Total
Quarter ended: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 506 |  | 744 |  | 2,092 |  | 1,061 |  | 125 |  |  | $ | 4,528
Charge-offs |  | — |  | — |  | — |  | (7) |  | (1) |  |  |  | (8)
Recoveries |  | 3 |  | 5 |  | — |  | 49 |  | 1 |  |  |  | 58
| Net recoveries |  | 3 |  | 5 |  | — |  | 42 |  | — |  |  |  | 50
Provision for loan losses |  | 6 |  | (76) |  | 140 |  | (83) |  | 13 |  |  |  | —
Ending balance | $ | 515 |  | 673 |  | 2,232 |  | 1,020 |  | 138 |  |  | $ | 4,578
Nine months ended: |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 523 |  | 669 |  | 1,879 |  | 1,059 |  | 159 |  |  | $ | 4,289
Charge-offs |  | (83) |  | — |  | (194) |  | (162) |  | (29) |  |  |  | (468)
Recoveries |  | 26 |  | 1,207 |  | — |  | 115 |  | 9 |  |  |  | 1,357
| Net (charge-offs) recoveries |  | (57) |  | 1,207 |  | (194) |  | (47) |  | (20) |  |  |  | 889
Provision for loan losses |  | 49 |  | (1,203) |  | 547 |  | 8 |  | (1) |  |  |  | (600)
Ending balance | $ | 515 |  | 673 |  | 2,232 |  | 1,020 |  | 138 |  |  | $ | 4,578
Financing Receivable Allowance for Credit Loss Additional Information [Table Text Block] |
|  |  |  |  |  |  | Collectively evaluated (1) |  | Individually evaluated (2) |  | Total
|  |  |  |  |  |  | Allowance | Recorded |  | Allowance | Recorded |  | Allowance | Recorded
|  |  |  |  |  |  | for loan | investment |  | for loan | investment |  | for loan | investment
(In thousands) |  | losses | in loans |  | losses | in loans |  | losses | in loans
September 30, 2017: |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 471 | 50,068 |  | 33 | 33 |  | 504 | 50,101
Construction and land development |  | 851 | 47,455 |  | — | — |  | 851 | 47,455
Commercial real estate |  | 2,045 | 229,700 |  | 16 | 2,680 |  | 2,061 | 232,380
Residential real estate |  | 1,077 | 110,159 |  | — | — |  | 1,077 | 110,159
Consumer installment |  | 177 | 9,877 |  | — | — |  | 177 | 9,877
|  | Total | $ | 4,621 | 447,259 |  | 49 | 2,713 |  | 4,670 | 449,972
September 30, 2016: |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 515 | 50,858 |  | — | 23 |  | 515 | 50,881
Construction and land development |  | 673 | 43,959 |  | — | 45 |  | 673 | 44,004
Commercial real estate |  | 2,196 | 209,840 |  | 36 | 1,718 |  | 2,232 | 211,558
Residential real estate |  | 1,020 | 112,303 |  | — | — |  | 1,020 | 112,303
Consumer installment |  | 138 | 8,996 |  | — | — |  | 138 | 8,996
|  | Total | $ | 4,542 | 425,956 |  | 36 | 1,786 |  | 4,578 | 427,742
(1) | Represents loans collectively evaluated for impairment in accordance with ASC 450-20, Loss Contingencies (formerly FAS 5), and
| pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans.
(2) | Represents loans individually evaluated for impairment in accordance with ASC 310-30, Receivables (formerly FAS 114), and
| pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans.
Financing Receivable Credit Quality Indicators [Table Text Block] |
(In thousands) |  | Pass |  | Special Mention |  | Substandard Accruing |  | Nonaccrual |  |  | Total loans
September 30, 2017: |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 49,817 |  | 121 |  | 130 |  | 33 |  | $ | 50,101
Construction and land development |  | 46,778 |  | 404 |  | 273 |  | — |  |  | 47,455
Commercial real estate: |  |  |  |  |  |  |  |  |  |  |
| Owner occupied |  | 41,048 |  | 244 |  | 341 |  | — |  |  | 41,633
| Multi-family |  | 47,794 |  | — |  | — |  | — |  |  | 47,794
| Other |  | 139,671 |  | 356 |  | 426 |  | 2,500 |  |  | 142,953
|  | Total commercial real estate |  | 228,513 |  | 600 |  | 767 |  | 2,500 |  |  | 232,380
Residential real estate: |  |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  | 57,087 |  | 2,032 |  | 3,584 |  | 353 |  |  | 63,056
| Investment property |  | 46,054 |  | 109 |  | 940 |  | — |  |  | 47,103
|  | Total residential real estate |  | 103,141 |  | 2,141 |  | 4,524 |  | 353 |  |  | 110,159
Consumer installment |  | 9,694 |  | 71 |  | 96 |  | 16 |  |  | 9,877
|  | Total | $ | 437,943 |  | 3,337 |  | 5,790 |  | 2,902 |  | $ | 449,972
December 31, 2016: |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 49,558 |  | 22 |  | 233 |  | 37 |  | $ | 49,850
Construction and land development |  | 41,165 |  | 113 |  | 340 |  | 32 |  |  | 41,650
Commercial real estate: |  |  |  |  |  |  |  |  |  |  |
| Owner occupied |  | 48,788 |  | 414 |  | 405 |  | 138 |  |  | 49,745
| Multi-family |  | 46,998 |  | — |  | — |  | — |  |  | 46,998
| Other |  | 121,326 |  | 32 |  | 449 |  | 1,889 |  |  | 123,696
|  | Total commercial real estate |  | 217,112 |  | 446 |  | 854 |  | 2,027 |  |  | 220,439
Residential real estate: |  |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  | 59,450 |  | 2,613 |  | 3,278 |  | 223 |  |  | 65,564
| Investment property |  | 44,109 |  | 105 |  | 1,048 |  | 29 |  |  | 45,291
|  | Total residential real estate |  | 103,559 |  | 2,718 |  | 4,326 |  | 252 |  |  | 110,855
Consumer installment |  | 8,580 |  | 20 |  | 90 |  | 22 |  |  | 8,712
|  | Total | $ | 419,974 |  | 3,319 |  | 5,843 |  | 2,370 |  | $ | 431,506
Impaired Financing Receivables [Table Text Block] |
|  |  |  |  |  |  | September 30, 2017
(In thousands) |  | Unpaid principal balance (1) | Charge-offs and payments applied (2) | Recorded investment (3) |  |  | Related allowance
With no allowance recorded:
Commercial real estate: |  |  |  |  |  |  |
| Other | $ | 3,590 | (1,090) | 2,500 |  |  |
|  | Total commercial real estate |  | 3,590 | (1,090) | 2,500 |  |  |
|  | Total | $ | 3,590 | (1,090) | 2,500 |
With allowance recorded: |
Commercial and industrial | $ | 53 | (20) | 33 |  | $ | 33
Commercial real estate: |  |  |  |  |  |  |
| Owner occupied |  | 180 | — | 180 |  |  | 16
|  | Total commercial real estate |  | 180 | — | 180 |  |  | 16
|  | Total |  | 233 | (20) | 213 |  |  | 49
|  | Total impaired loans | $ | 3,823 | (1,110) | 2,713 |  | $ | 49
(1) Unpaid principal balance represents the contractual obligation due from the customer.
(2) Charge-offs and payments applied represents cumulative charge-offs taken, as well as interest payments that have been
| applied against the outstanding principal balance subsequent to the loans being placed on nonaccrual status.
(3) Recorded investment represents the unpaid principal balance less charge-offs and payments applied; it is shown before
| any related allowance for loan losses.
|  |  |  |  |  |  | December 31, 2016
(In thousands) |  | Unpaid principal balance (1) | Charge-offs and payments applied (2) | Recorded investment (3) |  |  | Related allowance
With no allowance recorded:
Commercial and industrial | $ | 15 | — | 15 |  |  |
Construction and land development |  | 140 | (108) | 32 |  |  |
Commercial real estate: |  |  |  |  |  |  |
| Other |  | 2,874 | (984) | 1,890 |  |  |
|  | Total commercial real estate |  | 2,874 | (984) | 1,890 |  |  |
|  | Total | $ | 3,029 | (1,092) | 1,937 |
With allowance recorded: |
Commercial real estate: |  |  |  |  |  |  |
| Owner occupied | $ | 193 | — | 193 |  | $ | 31
|  | Total commercial real estate |  | 193 | — | 193 |  |  | 31
|  | Total |  | 193 | — | 193 |  |  | 31
|  | Total impaired loans | $ | 3,222 | (1,092) | 2,130 |  | $ | 31
(1) Unpaid principal balance represents the contractual obligation due from the customer.
(2) Charge-offs and payments applied represents cumulative charge-offs taken, as well as interest payments that have been
| applied against the outstanding principal balance subsequent to the loans being placed on nonaccrual status.
(3) Recorded investment represents the unpaid principal balance less charge-offs and payments applied; it is shown before
| any related allowance for loan losses.
Schedule Of Average Impaired Financing Receivable [Table Text Block] |
|  |  |  |  |  |  | Quarter ended September 30, 2017 |  | Nine months ended September 30, 2017
|  |  |  |  |  |  | Average |  | Total interest |  | Average |  | Total interest
|  |  |  |  |  |  | recorded |  | income |  | recorded |  | income
(In thousands) |  | investment |  | recognized |  | investment |  | recognized
Impaired loans:
Commercial and industrial | $ | 126 |  | — |  | 55 |  | —
Construction and land development |  | — |  | — |  | 15 |  | —
Commercial real estate: |  |  |  |  |  |  |  |
| Owner occupied |  | 182 |  | 2 |  | 186 |  | 8
| Other |  | 2,148 |  | — |  | 1,971 |  | —
|  | Total commercial real estate |  | 2,330 |  | 2 |  | 2,157 |  | 8
|  | Total | $ | 2,456 |  | 2 |  | 2,227 |  | 8
|  |  |  |  |  |  | Quarter ended September 30, 2016 |  | Nine months ended September 30, 2016
|  |  |  |  |  |  | Average |  | Total interest |  | Average |  | Total interest
|  |  |  |  |  |  | recorded |  | income |  | recorded |  | income
(In thousands) |  | investment |  | recognized |  | investment |  | recognized
Impaired loans:
Commercial and industrial | $ | 26 |  | — |  | 36 |  | 2
Construction and land development |  | 48 |  | — |  | 111 |  | —
Commercial real estate: |  |  |  |  |  |  |  |
| Owner occupied |  | 465 |  | 3 |  | 850 |  | 29
| Other |  | 1,532 |  | — |  | 1,662 |  | —
|  | Total commercial real estate |  | 1,997 |  | 3 |  | 2,512 |  | 29
|  | Total | $ | 2,071 |  | 3 |  | 2,659 |  | 31
Troubled Debt Restructurings on Financing Receivables, Accrual Status [Table Text Block] |
|  |  |  |  |  |  | TDRs
|  |  |  |  |  |  |  |  |  |  |  | Related
(In thousands) |  | Accruing | Nonaccrual | Total |  |  | Allowance
September 30, 2017 |  |  |  |  |  |  |
Commercial and industrial | $ | — | 33 | 33 |  | $ | 33
Commercial real estate: |  |  |  |  |  |  |
| Owner occupied |  | 180 | — | 180 |  |  | 16
| Other |  | — | 1,693 | 1,693 |  |  | —
|  | Total commercial real estate |  | 180 | 1,693 | 1,873 |  |  | 16
|  | Total | $ | 180 | 1,726 | 1,906 |  | $ | 49
December 31, 2016 |  |
Commercial and industrial | $ | 15 | — | 15 |  | $ | —
Construction and land development |  | — | 32 | 32 |  |  | —
Commercial real estate: |  |  |  |  |  |  |
| Owner occupied |  | 193 | — | 193 |  |  | 31
| Other |  | — | 1,818 | 1,818 |  |  | —
|  | Total commercial real estate |  | 193 | 1,818 | 2,011 |  |  | 31
|  | Total | $ | 208 | 1,850 | 2,058 |  | $ | 31
Troubled Debt Restructuring Modifications [Table Text Block] |
|  |  |  |  |  | Quarter ended September 30, |  |  | Nine months ended September 30,
|  |  |  |  |  |  |  |  | Pre- |  | Post - |  |  |  |  |  | Pre- |  | Post -
|  |  |  |  |  |  |  |  | modification |  | modification |  |  |  |  |  | modification |  | modification
|  |  |  |  |  | Number |  |  | outstanding |  | outstanding |  |  | Number |  |  | outstanding |  | outstanding
|  |  |  |  |  | of |  |  | recorded |  | recorded |  |  | of |  |  | recorded |  | recorded
(Dollars in thousands) | contracts |  |  | investment |  | investment |  |  | contracts |  |  | investment |  | investment
2017: |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | 1 |  | $ | 34 |  | 34 |  |  | 1 |  | $ | 34 |  | 34
Commercial real estate: |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Other | — |  |  | — |  | — |  |  | 1 |  |  | 1,275 |  | 1,266
|  | Total commercial real estate | — |  |  | — |  | — |  |  | 1 |  |  | 1,275 |  | 1,266
|  | Total | 1 |  | $ | 34 |  | 34 |  |  | 2 |  | $ | 1,309 |  | 1,300
2016: |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate: |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Other | — |  |  | — |  | — |  |  | 1 |  | $ | 1,509 |  | 1,509
|  | Total commercial real estate | — |  |  | — |  | — |  |  | 1 |  |  | 1,509 |  | 1,509
|  | Total | — |  |  | — |  | — |  |  | 1 |  | $ | 1,509 |  | 1,509

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- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 55 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=32702940&loc=SL6953803-111525 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953659-111524 + Details
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- Definition Tabular disclosure of financing receivables and troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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