Stockholders’ Equity (Stock Options-Narrative) (Details) - Stock Options [Member] |
3 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
|
Mar. 26, 2018
USD ($)
employee
item
$ / shares
shares
|
Nov. 30, 2017
USD ($)
employee
item
$ / shares
shares
|
Aug. 14, 2017
USD ($)
employee
item
$ / shares
shares
|
Jun. 28, 2017
USD ($)
employee
item
$ / shares
shares
|
May 15, 2017
USD ($)
employee
item
$ / shares
shares
|
Mar. 23, 2017
USD ($)
employee
item
$ / shares
shares
|
Mar. 31, 2018
$ / shares
shares
|
Dec. 31, 2017
shares
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||
| Number of employees, options granted | employee | 1 | 15 | 2 | 2 | 8 | 7 | ||
| Options granted | shares | 300,000 | 285,000 | 165,000 | 150,000 | 2,105,000 | 322,500 | 300,000 | 3,027,500 |
| Weighted average grant date fair value | $ 1.10 | $ 1.15 | $ 0.895 | $ 0.76 | $ 0.60 | $ 0.72 | ||
| Percent of shares vested on first anniversary of grant date | 25.00% | 25.00% | 25.00% | 25.00% | 25.00% | |||
| Monthly installments in which options vest, after initial vesting Anniversary | item | 48 | 36 | 36 | 36 | 36 | 36 | ||
| Volatility rate | 102.00% | 84.00% | 86.00% | 86.00% | 85.00% | 86.00% | ||
| Call option value, price per share | $ 0.88 | $ 0.82 | $ 0.65 | $ 0.55 | $ 0.43 | $ 0.52 | ||
| Call option value | $ | $ 265,575 | $ 235,452 | $ 107,250 | $ 82,500 | $ 905,150 | $ 167,700 | ||
| Weighted average grant date fair value | $ 0.52 | |||||||
| Weighted average exercise price | $ 0.72 |
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- Definition Monthly Installments In Which Options Vest, After Initial Vesting Anniversary No definition available.
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- Definition Number Of Employees, Options Granted No definition available.
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- Definition Percent Of Shares Vested On First Anniversary Of Grant Date No definition available.
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- Definition Share-based Compensation, Call Option Value No definition available.
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- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- 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 The grant-date intrinsic 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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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- 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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- 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
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- Definition Weighted average grant-date fair value of options vested. No definition available.
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- Details
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