Stock based compensation, options and warrants (Schedule of Restricted Stock Activity) (Details) - Restricted Stock [Member] |
9 Months Ended |
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Sep. 30, 2017
$ / shares
shares
| |
Number of shares | |
Beginning balance | shares | |
Granted | shares | 422,000 |
Vested | shares | (42,622) |
Forfeited | shares | (40,000) |
Ending balance | shares | 339,378 |
Weighted Average Grant Date Fair value | |
Beginning balance | $ / shares | |
Granted | $ / shares | 3.69 |
Vested | $ / shares | 3.20 |
Forfeited | $ / shares | 3.13 |
Ending balance | $ / shares | $ 3.75 |
X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
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X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition Number of non-vested options outstanding. No definition available.
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X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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X | ||||||||||
- Definition Number of non-vested options forfeited. No definition available.
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X | ||||||||||
- Definition Weighted average grant-date fair value of non-vested options forfeited. No definition available.
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X | ||||||||||
- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available.
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X | ||||||||||
- References No definition available.
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X | ||||||||||
- Definition Number of options vested. No definition available.
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X | ||||||||||
- Definition Weighted average grant-date fair value of options vested. No definition available.
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X | ||||||||||
- Details
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