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Equity Incentive Plans (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Stock Option Activity | A summary of the activity in the stock option plan for 2017 follows:
Stock Options |  | Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (1)
Stock options outstanding at January 1, 2017 |  | 1,752,156 |  |  | $ | 12.30 |  |  | 0.48 |  | $ | 4,422 |
Stock options granted |  | — |  |  | — |  |  |  |  |
Stock options exercised |  | (1,752,156 | ) |  | 12.30 |  |  |  |  |
Stock options outstanding at December 31, 2017 |  | — |  |  | $ | — |  |  | 0.00 |  | $ | — |
(1) Stock option aggregate intrinsic value represents the number of shares subject to options multiplied by the difference (if positive) in the closing market price of the common stock underlying the options on the date shown and the weighted average exercise price.
Schedule of Unvested Shares of Restricted Stock |
Restricted Stock |  | Number of Shares (1) |  | Weighted Average Fair Value at Grant Date |  | Weighted Average Term to Vest (in years) |  | Aggregate Intrinsic Value (2)
Shares outstanding at January 1, 2017 |  | 940 |  |  | $ | 8.14 |  |  | 0.74 |  | $ | 14 |
Shares granted |  | — |  |  | — |  |  |  |  |
Shares vested |  | — |  |  | — |  |  |  |  |
Shares forfeited |  | — |  |  | — |  |  |  |  |
Shares outstanding at December 31, 2017 |  | 940 |  |  | $ | 8.14 |  |  | 0.00 |  | $ | 14 |
Shares granted |  | — |  |  | — |  |  |  |  |
Shares vested |  | (694 | ) |  | 8.14 |  |  |  |  |
Shares forfeited |  | (246 | ) |  | 8.14 |  |  |  |  |
Shares outstanding at December 31, 2018 |  | — |  |  | $ | — |  |  | 0.00 |  | $ | — |
(1) | The end of period balances consist only of unvested shares.
(2) | Restricted stock aggregate intrinsic value represents the number of shares of restricted stock multiplied by the market price of the common stock underlying the outstanding shares on the date shown.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&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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