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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | Net income available to common shareholders and the weighted average number of common shares used to compute basic and diluted earnings per share was as follows:
|  | For the Year Ended December 31,
(in thousands, except per share data) |  | 2017 |  | 2016 |  | 2015
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 21,154 |  |  | $ | 21,431 |  |  | $ | 27,302 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 16,273 |  |  |  | 17,109 |  |  |  | 20,577 |
Weighted average dilutive securities |  |  | 223 |  |  |  | 352 |  |  |  | 461 |
Weighted average common shares outstanding, diluted |  |  | 16,496 |  |  |  | 17,461 |  |  |  | 21,038 |
Income per common share, basic |  | $ | 1.30 |  |  | $ | 1.25 |  |  | $ | 1.33 |
Income per common share, diluted |  | $ | 1.28 |  |  | $ | 1.23 |  |  | $ | 1.30 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] | The following table summarizes the shares of common stock underlying the Company’s unvested stock options and performance awards that were excluded from the calculation of dilutive securities:
(In thousands) |  | 2017 |  | 2016 |  | 2015
Stock options |  |  | — |  |  |  | — |  |  |  | 3 |
Time-vested stock awards |  |  | 44 |  |  |  | — |  |  |  | — |
Performance awards |  |  | 97 |  |  |  | 63 |  |  |  | 34 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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