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Stock-Based Compensation Plans (Tables) | 3 Months Ended
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Mar. 31, 2019
Share-based Compensation [Abstract] |
Schedule of components of stock compensation expense | The components of stock-based compensation expense for the three months ended March 31, 2019 and 2018 were as follows:
| Three months ended March 31,
| 2019 |  | 2018
| (in thousands)
2007 Stock Incentive Plan | $ | 1,259 |  |  | $ | 905 |
Employee Stock Purchase Plan | 6 |  |  | 20 |
Total Stock Compensation Expense | $ | 1,265 |  |  | $ | 925 |
Summary of restricted stock activity | The following table summarizes restricted stock activity during the three months ended March 31, 2019:
| Shares
Restricted stock at December 31, 2018 | 417,890 |
Shares granted | — |
Shares forfeited | — |
Shares vested | (91,229 | )
Restricted stock at March 31, 2019 | 326,661 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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