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Loan and Allowance for Loan Losses (Tables) | 12 Months Ended
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Dec. 31, 2018
Loans And Leases Receivable Disclosure [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  |  |  |  |  |  | December 31
(In thousands) |  |  | 2018 |  |  | 2017
Commercial and industrial |  | $ | 63,467 |  | $ | 59,086
Construction and land development |  |  | 40,222 |  |  | 39,607
Commercial real estate: |  |  |  |  |  |
| Owner occupied |  |  | 56,413 |  |  | 44,192
| Multifamily |  |  | 40,455 |  |  | 52,167
| Other |  |  | 165,028 |  |  | 142,674
|  | Total commercial real estate |  |  | 261,896 |  |  | 239,033
Residential real estate: |  |  |  |  |  |
| Consumer mortgage |  |  | 56,223 |  |  | 59,540
| Investment property |  |  | 46,374 |  |  | 47,323
|  | Total residential real estate |  |  | 102,597 |  |  | 106,863
Consumer installment |  |  | 9,295 |  |  | 9,588
|  | Total loans |  |  | 477,477 |  |  | 454,177
Less: unearned income |  |  | (569) |  |  | (526)
|  | Loans, net of unearned income |  | $ | 476,908 |  | $ | 453,651
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
December 31, 2018: |  |  |  |  |  |  |  |  |  |
Commercial and industrial |  | $ | 63,367 | 100 | — | 63,467 | — |  | $ | 63,467
Construction and land development |  |  | 39,997 | 225 | — | 40,222 | — |  |  | 40,222
Commercial real estate: |  |  |  |  |  |  |  |  |  |
| Owner occupied |  |  | 56,413 | — | — | 56,413 | — |  |  | 56,413
| Multifamily |  |  | 40,455 | — | — | 40,455 | — |  |  | 40,455
| Other |  |  | 165,028 | — | — | 165,028 | — |  |  | 165,028
|  | Total commercial real estate |  |  | 261,896 | — | — | 261,896 | — |  |  | 261,896
Residential real estate: |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  |  | 54,446 | 1,599 | — | 56,045 | 178 |  |  | 56,223
| Investment property |  |  | 46,233 | 141 | — | 46,374 | — |  |  | 46,374
|  | Total residential real estate |  |  | 100,679 | 1,740 | — | 102,419 | 178 |  |  | 102,597
Consumer installment |  |  | 9,254 | 41 | — | 9,295 | — |  |  | 9,295
|  | Total |  | $ | 475,193 | 2,106 | — | 477,299 | 178 |  | $ | 477,477
December 31, 2017: |  |  |  |  |  |  |  |  |  |
Commercial and industrial |  | $ | 59,047 | 8 | — | 59,055 | 31 |  | $ | 59,086
Construction and land development |  |  | 39,607 | — | — | 39,607 | — |  |  | 39,607
Commercial real estate: |  |  |  |  |  |  |  |  |  |
| Owner occupied |  |  | 44,192 | — | — | 44,192 | — |  |  | 44,192
| Multifamily |  |  | 52,167 | — | — | 52,167 | — |  |  | 52,167
| Other |  |  | 140,486 | — | — | 140,486 | 2,188 |  |  | 142,674
|  | Total commercial real estate |  |  | 236,845 | — | — | 236,845 | 2,188 |  |  | 239,033
Residential real estate: |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  |  | 58,195 | 746 | — | 58,941 | 599 |  |  | 59,540
| Investment property |  |  | 46,871 | 312 | — | 47,183 | 140 |  |  | 47,323
|  | Total residential real estate |  |  | 105,066 | 1,058 | — | 106,124 | 739 |  |  | 106,863
Consumer installment |  |  | 9,517 | 57 | — | 9,574 | 14 |  |  | 9,588
|  | Total |  | $ | 450,082 | 1,123 | — | 451,205 | 2,972 |  | $ | 454,177
Allowance for Credit Losses on Financing Receivables [Table Text Block] |
|  |  | Year ended December 31
(In thousands) |  |  | 2018 |  |  | 2017
Beginning balance |  | $ | 4,757 |  | $ | 4,643
Charged-off loans |  |  | (168) |  |  | (596)
Recovery of previously charged-off loans |  |  | 201 |  |  | 1,010
| Net recoveries |  |  | 33 |  |  | 414
Provision for loan losses |  |  | — |  |  | (300)
Ending balance |  | $ | 4,790 |  | $ | 4,757
(in thousands) |  | Commercial and industrial |  | Construction and land Development |  | Commercial Real Estate |  | Residential Real Estate |  | Consumer Installment |  |  |  | Total
Balance, December 31, 2016 | $ | 540 |  | 812 |  | 2,071 |  | 1,107 |  | 113 |  |  | $ | 4,643
Charge-offs |  | (449) |  | — |  | — |  | (107) |  | (40) |  |  |  | (596)
Recoveries |  | 461 |  | 347 |  | — |  | 115 |  | 87 |  |  |  | 1,010
| Net recoveries | 12 |  | 347 |  | — |  | 8 |  | 47 |  |  |  | 414
Provision |  | 101 |  | (425) |  | 55 |  | (44) |  | 13 |  |  |  | (300)
Balance, December 31, 2017 | $ | 653 |  | 734 |  | 2,126 |  | 1,071 |  | 173 |  |  | $ | 4,757
Charge-offs |  | (52) |  | — |  | (38) |  | (26) |  | (52) |  |  |  | (168)
Recoveries |  | 70 |  | — |  | 19 |  | 79 |  | 33 |  |  |  | 201
| Net recoveries | 18 |  | — |  | (19) |  | 53 |  | (19) |  |  |  | 33
Provision |  | 107 |  | (34) |  | 111 |  | (178) |  | (6) |  |  |  | —
Balance, December 31, 2018 | $ | 778 |  | 700 |  | 2,218 |  | 946 |  | 148 |  |  | $ | 4,790
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
December 31, 2018: |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 778 | 63,467 |  | — | — |  | 778 | 63,467
Construction and land development |  | 700 | 40,222 |  | — | — |  | 700 | 40,222
Commercial real estate |  | 2,218 | 261,739 |  | — | 157 |  | 2,218 | 261,896
Residential real estate |  | 946 | 102,597 |  | — | — |  | 946 | 102,597
Consumer installment |  | 148 | 9,295 |  | — | — |  | 148 | 9,295
|  | Total | $ | 4,790 | 477,320 |  | — | 157 |  | 4,790 | 477,477
December 31, 2017: |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 622 | 59,055 |  | 31 | 31 |  | 653 | 59,086
Construction and land development |  | 734 | 39,607 |  | — | — |  | 734 | 39,607
Commercial real estate |  | 2,115 | 236,322 |  | 11 | 2,711 |  | 2,126 | 239,033
Residential real estate |  | 1,071 | 106,863 |  | — | — |  | 1,071 | 106,863
Consumer installment |  | 173 | 9,588 |  | — | — |  | 173 | 9,588
|  | Total | $ | 4,715 | 451,435 |  | 42 | 2,742 |  | 4,757 | 454,177
(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 unimpaired 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
December 31, 2018 |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 61,568 |  | 1,377 |  | 522 |  | — |  | $ | 63,467
Construction and land development |  | 39,481 |  | — |  | 741 |  | — |  |  | 40,222
Commercial real estate: |  |  |  |  |  |  |  |  |  |  |
| Owner occupied |  | 55,942 |  | 154 |  | 317 |  | — |  |  | 56,413
| Multifamily |  | 40,455 |  | — |  | — |  | — |  |  | 40,455
| Other |  | 163,449 |  | 1,208 |  | 371 |  | — |  |  | 165,028
|  | Total commercial real estate |  | 259,846 |  | 1,362 |  | 688 |  | — |  |  | 261,896
Residential real estate: |  |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  | 50,903 |  | 1,374 |  | 3,768 |  | 178 |  |  | 56,223
| Investment property |  | 45,463 |  | 173 |  | 738 |  | — |  |  | 46,374
|  | Total residential real estate |  | 96,366 |  | 1,547 |  | 4,506 |  | 178 |  |  | 102,597
Consumer installment |  | 9,149 |  | 75 |  | 71 |  | — |  |  | 9,295
|  | Total | $ | 466,410 |  | 4,361 |  | 6,528 |  | 178 |  | $ | 477,477
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | $ | 58,842 |  | 94 |  | 119 |  | 31 |  | $ | 59,086
Construction and land development |  | 39,049 |  | 90 |  | 468 |  | — |  |  | 39,607
Commercial real estate: |  |  |  |  |  |  |  |  |  |  |
| Owner occupied |  | 43,615 |  | 240 |  | 337 |  | — |  |  | 44,192
| Multifamily |  | 52,167 |  | — |  | — |  | — |  |  | 52,167
| Other |  | 139,695 |  | 395 |  | 396 |  | 2,188 |  |  | 142,674
|  | Total commercial real estate |  | 235,477 |  | 635 |  | 733 |  | 2,188 |  |  | 239,033
Residential real estate: |  |  |  |  |  |  |  |  |  |  |
| Consumer mortgage |  | 54,101 |  | 1,254 |  | 3,586 |  | 599 |  |  | 59,540
| Investment property |  | 46,463 |  | 53 |  | 667 |  | 140 |  |  | 47,323
|  | Total residential real estate |  | 100,564 |  | 1,307 |  | 4,253 |  | 739 |  |  | 106,863
Consumer installment |  | 9,430 |  | 66 |  | 78 |  | 14 |  |  | 9,588
|  | Total | $ | 443,362 |  | 2,192 |  | 5,651 |  | 2,972 |  | $ | 454,177
Impaired Financing Receivables [Table Text Block] |
|  |  |  |  |  |  | December 31, 2018
(In thousands) |  | Unpaid principal balance (1) |  | Charge-offs and payments applied (2) |  | Recorded investment (3) |  |  | Related allowance
With no allowance recorded:
Commercial real estate: |  |  |  |  |  |  |  |  |
| Owner occupied | $ | 157 |  | — |  | 157 |  |  |
|  | Total commercial real estate |  | 157 |  | — |  | 157 |  |  |
|  | Total impaired loans | $ | 157 |  | — |  | 157 |  | $ | —
(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.
(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, 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 | $ | 3,630 |  | (1,094) |  | 2,536 |  |  |
|  | Total commercial real estate |  | 3,630 |  | (1,094) |  | 2,536 |  |  |
|  | Total | $ | 3,630 |  | (1,094) |  | 2,536 |
With allowance recorded: |
Commercial and industrial | $ | 52 |  | (21) |  | 31 |  | $ | 31
Commercial real estate: |  |  |  |  |  |  |  |  |
| Owner occupied |  | 175 |  | — |  | 175 |  |  | 11
|  | Total commercial real estate |  | 175 |  | — |  | 175 |  |  | 11
|  | Total | $ | 227 |  | (21) |  | 206 |  | $ | 42
|  | Total impaired loans | $ | 3,857 |  | (1,115) |  | 2,742 |  | $ | 42
(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.
(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] |
|  |  |  |  |  | Year ended December 31, 2018 |  | Year ended December 31, 2017
|  |  |  |  |  |  | Average |  | Total interest |  |  | Average |  | Total interest
|  |  |  |  |  |  | recorded |  | income |  |  | recorded |  | income
(In thousands) |  | investment |  | recognized |  |  | investment |  | recognized
Impaired loans:
Commercial and industrial | $ | 9 |  | — |  | $ | 50 |  | —
Construction and land |  |  |  |  |  |  |  |  |
| development |  | — |  | — |  |  | 11 |  | —
Commercial real estate: |  |  |  |  |  |  |  |  |
| Owner occupied |  | 166 |  | 9 |  |  | 184 |  | 10
| Other |  | 1,145 |  | — |  |  | 2,096 |  | 1
|  | Total commercial real estate |  | 1,311 |  | 9 |  |  | 2,280 |  | 11
|  | Total | $ | 1,320 |  | 9 |  | $ | 2,341 |  | 11
Troubled Debt Restructurings on Financing Receivables, Accrual Status [Table Text Block] |
|  |  |  |  |  |  | TDRs
|  |  |  |  |  |  |  |  |  |  |  | Related
(In thousands) |  | Accruing | Nonaccrual | Total |  |  | Allowance
December 31, 2018 |  |  |  |  |  |  |
Commercial real estate: |  |  |  |  |  |  |
| Owner occupied | $ | 157 | — | 157 |  | $ | —
|  | Total commercial real estate |  | 157 | — | 157 |  |  | —
|  | Total | $ | 157 | — | 157 |  | $ | —
December 31, 2017 |  |  |  |  |  |  |
Commercial and industrial | $ | — | 31 | 31 |  | $ | 31
Commercial real estate: |  |  |  |  |  |  |
| Owner occupied |  | 175 | — | 175 |  |  | 11
| Other |  | 287 | 1,431 | 1,718 |  |  | —
|  | Total commercial real estate |  | 462 | 1,431 | 1,893 |  |  | 11
|  | Total | $ | 462 | 1,462 | 1,924 |  | $ | 42
Troubled Debt Restructuring Modifications [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Pre- |  | Post-
|  |  |  |  |  |  |  |  |  | modification |  | modification
|  |  |  |  |  |  |  |  |  | outstanding |  | outstanding
|  |  |  |  |  |  | Number of |  |  | recorded |  | recorded
($ in thousands) |  | contracts |  |  | investment |  | investment
December 31, 2018 |  |  |  |  |  |  |
Commercial real estate: |  |  |  |  |  |  |
| Other |  | 2 |  | $ | 1,447 |  | 1,447
|  | Total commercial real estate |  | 2 |  |  | 1,447 |  | 1,447
|  | Total |  | 2 |  | $ | 1,447 |  | 1,447
December 31, 2017 |  |  |  |  |  |  |
Commercial and industrial |  | 1 |  | $ | 34 |  | 34
Commercial real estate: |  |  |  |  |  |  |
| Other |  | 1 |  | $ | 1,275 |  | 1,266
|  | Total commercial real estate |  | 1 |  |  | 1,275 |  | 1,266
|  | Total |  | 2 |  | $ | 1,309 |  | 1,300
Schedule Of Debtor Troubled Debt Restructuring, Subsequent Defaults [Table Text Block] |
|  |  |  |  |  | Number of |  |  | Recorded
($ in thousands) | Contracts |  |  | investment (1)
December 31, 2018 |  |  |  |
Commercial real estate: |  |  |  |
| Other | 1 |  | $ | 1,259
|  | Total commercial real estate | 1 |  |  | 1,259
|  | Total | 1 |  | $ | 1,259
(1) Amount as of applicable month end during the respective year for which there was a payment default.

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