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Quarterly Results of Operations (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Schedule of summary of consolidated unaudited quarterly results of operations |
(dollars in thousands, |  | Three months ended
except per share amounts) |  | December 31, |  | September 30, |  | June 30, |  | March 31,
Interest income |  | $ | 3,466 |  | $ | 3,434 |  | $ | 3,383 |  | $ | 3,324
Interest expense |  |  | 460 |  |  | 499 |  |  | 487 |  |  | 491
Net interest income |  |  | 3,006 |  |  | 2,935 |  |  | 2,896 |  |  | 2,833
Provision for credit losses |  |  | 93 |  |  | 78 |  |  | (30) |  |  | 195
Net securities gains |  |  | — |  |  | — |  |  | 1 |  |  | —
Income before income taxes |  |  | 565 |  |  | 512 |  |  | 401 |  |  | 346
Net income |  |  | (152) |  |  | 411 |  |  | 338 |  |  | 316
Net income per share (basic and diluted) |  | $ | (0.05) |  | $ | 0.15 |  | $ | 0.12 |  | $ | 0.11
___________________________________________2016______________________________
(dollars in thousands, |  | Three months ended
except per share amounts) |  | December 31, |  | September 30, |  | June 30, |  | March 31,
Interest income |  | $ | 3,343 |  | $ | 3,318 |  | $ | 3,269 |  | $ | 3,351
Interest expense |  |  | 509 |  |  | 526 |  |  | 536 |  |  | 552
Net interest income |  |  | 2,834 |  |  | 2,792 |  |  | 2,733 |  |  | 2,799
Provision for credit losses |  |  | 635 |  |  | 116 |  |  | — |  |  | 117
Net securities gains |  |  | 1 |  |  | — |  |  | — |  |  | 1
Income before income taxes |  |  | 289 |  |  | 60 |  |  | 352 |  |  | 317
Net income |  |  | 395 |  |  | 115 |  |  | 308 |  |  | 283
Net income per share (basic and diluted) |  | $ | 0.15 |  | $ | 0.04 |  | $ | 0.11 |  | $ | 0.10

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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