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Nature of Operations and Summary of Significant Accounting Policies Adoption of ASU No. 2016-09 (Tables) | 12 Months Ended
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Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Summary of Impacts on ASU No. 2016-09 Adoption | Adoption of the standard impacted the Corporation’s previously reported quarterly results as follows:
|  | For the Three Months Ended
|  | September 30, 2016 |  | June 30, 2016 |  | March 31, 2016
|  | As Reported |  | As Adjusted |  | As Reported |  | As Adjusted |  | As Reported |  | As Adjusted
|  | (Dollars in Thousands, Except Share Data)
Income tax (benefit) expense |  | $ | (2,895 | ) |  | $ | (3,020 | ) |  | $ | 1,628 |  |  | $ | 1,621 |  |  | $ | 2,362 |  |  | $ | 2,356 |
Net income |  | 2,540 |  |  | 2,665 |  |  | 3,716 |  |  | 3,723 |  |  | 4,547 |  |  | 4,553 |
Effective tax rate |  | NM |  |  | NM |  |  | 30.5 | % |  | 30.3 | % |  | 34.2 | % |  | 34.1 | %
Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.29 |  |  | $ | 0.31 |  |  | $ | 0.43 |  |  | $ | 0.43 |  |  | $ | 0.52 |  |  | $ | 0.52 |
Diluted |  | 0.29 |  |  | 0.31 |  |  | 0.43 |  |  | 0.43 |  |  | 0.52 |  |  | 0.52 |
Additional paid-in capital |  | 77,544 |  |  | 77,419 |  |  | 77,127 |  |  | 77,120 |  |  | 76,851 |  |  | 76,845 |
Retained earnings |  | 88,255 |  |  | 88,380 |  |  | 86,760 |  |  | 86,767 |  |  | 84,089 |  |  | 84,095 |
Return on average assets (annualized) |  | 0.56 | % |  | 0.59 | % |  | 0.81 | % |  | 0.82 | % |  | 1.00 | % |  | 1.00 | %
Return on average equity (annualized) |  | 6.38 | % |  | 6.69 | % |  | 9.43 | % |  | 9.45 | % |  | 11.68 | % |  | 11.70 | %
NM = Not meaningful

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