Stock-Based Compensation (Stock Option Activity) (Details) |
9 Months Ended |
|---|---|
|
Sep. 30, 2017
$ / shares
shares
| |
| Stock-Based Compensation [Abstract] | |
| Number of Shares Underlying Options, Outstanding at beginning of period | shares | 2,644,000 |
| Number of Shares Underlying Options, Granted | shares | 1,550,442 |
| Number of Shares Underlying Options, Exercised | shares | (37,000) |
| Number of Shares Underlying Options, Forfeited/expired | shares | (1,202,000) |
| Number of Shares Underlying Options, Outstanding at end of period | shares | 2,955,000 |
| Weighted Average Exercise Price Per Share, Outstanding at beginning of period | $ / shares | $ 3.92 |
| Weighted Average Exercise Price Per Share, Granted | $ / shares | 0.99 |
| Weighted Average Exercise Price Per Share, Exercised | $ / shares | 1.04 |
| Weighted Average Exercise Price Per Share, Forfeited/expired | $ / shares | 4.63 |
| Weighted Average Exercise Price Per Share, Outstanding at end of period | $ / shares | $ 2.13 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|