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Stock Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock options activity | A summary of the Company’s stock option activity is as follows:
| Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Life (in years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding at January 1, 2017 | 1,709,967 |  |  | $ | 4.76 |  |  |  |  |
Granted | 25,000 |  |  | 3.50 |  |  |  |  |
Exercised | (33,870 | ) |  | 2.64 |  |  |  |  |
Canceled/Expired | (638,630 | ) |  | 3.75 |  |  |  |  |
Outstanding at December 31, 2017 | 1,062,467 |  |  | $ | 5.42 |  |  | 1.81 |  | $ | 1,240 |
Vested and expected to vest at December 31, 2017 | 1,062,467 |  |  | $ | 5.42 |  |  | 1.81 |  | $ | 1,240 |
Exercisable at December 31, 2017 | 962,467 |  |  | $ | 5.72 |  |  | 1.91 |  | $ | 1,004 |
Stock appreciation rights award activity | A summary of the Company’s SSAR activity is as follows:
| Number of SSARs |  | Weighted Average Exercise Price |  | Weighted Average Remaining Life (in years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding at January 1, 2017 | 1,183,024 |  |  | $ | 3.53 |  |  |  |  |
Granted | — |  |  | — |  |  |  |  |
Exercised | (916,874 | ) |  | 3.53 |  |  |  |  |
Canceled/Expired | — |  |  | — |  |  |  |  |
Outstanding at December 31, 2017 | 266,150 |  |  | $ | 3.53 |  |  | 1.09 |  | $ | 351 |
Vested and expected to vest at December 31, 2017 | 266,150 |  |  | $ | 3.53 |  |  | 1.09 |  | $ | 351 |
Exercisable at December 31, 2017 | 266,150 |  |  | $ | 3.53 |  |  | 1.09 |  | $ | 351 |
Restricted stock and restricted stock units activity | RSUs awarded to employees vest in equal annual installments over a three-year period and RSUs awarded to directors of the Company vest over a one-year period. A summary of the Company’s RSU activity is as follows:
| Number of RSUs |  | Weighted Average Grant-Date Fair Value
Outstanding at January 1, 2017 | 1,455,689 |  |  | $ | 2.36 |
Granted | 289,648 |  |  | 3.51 |
Vested and released | (273,335 | ) |  | 2.21 |
Canceled/Expired | — |  |  | — |
Outstanding at December 31, 2017 (1) | 1,472,002 |  |  | $ | 2.61 |
(1) Included 394,118 restricted stock units that have vested but have not converted into common stock.

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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