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v3.19.1

Subsequent Events (Details) - $ / shares |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 07, 2019 | Jan. 02, 2019 | Jan. 02, 2018 | Dec. 31, 2018 | Dec. 31, 2016
Subsequent Event [Line Items] |  |  |  |  |
Options granted (in shares) |  |  |  | 1,120,500 | 660,557
Weighted average exercise price, granted (USD per share) |  |  |  | $ 1.44 | $ 1.61
Executives and Key Personnel |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Options granted (in shares) |  |  | 492,000 |  |
Weighted average exercise price, granted (USD per share) |  |  | $ 1.39 |  |
Executives and Key Personnel | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Options granted (in shares) |  | 650,000 |  |  |
Weighted average exercise price, granted (USD per share) |  | $ 1.87 |  |  |
Board of Directors |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Options granted (in shares) |  |  | 250,000 |  |
Weighted average exercise price, granted (USD per share) |  |  | $ 1.39 |  |
Board of Directors | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Options granted (in shares) |  | 300,000 |  |  |
Weighted average exercise price, granted (USD per share) |  | $ 1.87 |  |  |
Board of Directors | Stock Option | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Award vesting period |  | 4 years |  |  |
Award requisite service percent |  | 25.00% |  |  |
Award vesting percent |  | 75.00% |  |  |
Non-executive Employees | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Options granted (in shares) |  | 24,000 |  |  |
Weighted average exercise price, granted (USD per share) |  | $ 1.87 |  |  |
Non-executive Employees | Stock Option | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Award vesting period |  | 4 years |  |  |
Consultant | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Options granted (in shares) | 15,000 |  |  |  |
Weighted average exercise price, granted (USD per share) | $ 3.00 |  |  |  |
Award vesting period | 1 year |  |  |  |
Minimum | Executives and Key Personnel | Stock Option | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Award vesting period |  | 1 year |  |  |
Maximum | Executives and Key Personnel | Stock Option | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Award vesting period |  | 4 years |  |  |

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period, Percentage + References No definition available. + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
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- Definition Percentage of vesting of share-based compensation awards. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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