Stockholders' Equity (Stock Option Activity) (Details) - Stock Options [Member] - shares |
3 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Mar. 26, 2018 |
Nov. 30, 2017 |
Aug. 14, 2017 |
Jun. 28, 2017 |
May 15, 2017 |
Mar. 23, 2017 |
Mar. 31, 2018 |
Dec. 31, 2017 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||
| Outstanding at Beginning of Period | 6,818,948 | 5,757,880 | ||||||
| Granted | 300,000 | 285,000 | 165,000 | 150,000 | 2,105,000 | 322,500 | 300,000 | 3,027,500 |
| Exercised | (12,500) | (152,085) | ||||||
| Forfeit/canceled | (666,227) | (1,451,053) | ||||||
| Expired | (26,043) | (363,294) | ||||||
| Outstanding at End of Period | 6,414,178 | 6,818,948 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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