XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Share-Based Compensation (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Restricted Ordinary Shares Activity | The following table summarizes restricted ordinary shares activity for the six months ended June 30, 2018:
|  | Number of |  |  | Weighted Average grant date fair |
|  | Shares |  |  | value per share |
Unvested at December 31, 2017 |  |  | 189,342 |  |  | $ | 3.14 |
Granted |  |  | — |  |  |  |  |
Vested |  |  | (46,266 | ) |  | $ | 3.14 |
Forfeited |  |  | — |  |  |  |  |
Unvested at June 30, 2018 (unaudited) |  |  | 143,076 |  |  | $ | 3.14 |
Schedule of Assumptions Used to Determine Grant Date Fair Value of Employee and Director Options Granted | The assumptions that the Company used to determine the grant date fair value of employee and director options granted were as follows, presented on a weighted average basis:
|  | Six months ended June 30, |
|  | 2018 |  |  | 2017 |
Volatility |  |  | 60 | % |  |  | 60 | %
Expected term in years |  |  | 6.25 |  |  |  | 6.25 |
Dividend rate |  |  | 0 | % |  |  | 0 | %
Risk-free interest rate |  |  | 2.16 | % |  |  | 1.63 | %
Share price |  | $12.20 - $13.00 |  |  | $ | 3.30 |
Fair value of option on grant date |  | $7.03 - $7.49 |  |  | $ | 1.88 |
Summary of Number of Options Outstanding and Weighted-average Exercise Price | The following table summarizes the number of options outstanding and the weighted-average exercise price:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life in Years |  |  | Aggregate Intrinsic Value (in thousands) |
Options outstanding December 31, 2017 |  |  | 248,128 |  |  | $ | 3.31 |  |  |  | 9.44 |  |  |  |  |
Granted |  |  | 447,984 |  |  |  | 12.99 |  |  |  | 9.92 |  |  |  |  |
Exercised |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Options outstanding June 30, 2018 |  |  | 696,112 |  |  | $ | 9.54 |  |  |  | 9.57 |  |  |  | 1,825 |
Vested at June 30, 2018 (unaudited) |  |  | 32,196 |  |  |  |  |  |  |  |  |  |  |  |  |
Exercisable at June 30, 2018 (unaudited) |  |  | 32,196 |  |  | $ | 3.17 |  |  |  | 8.15 |  |  |  | 766 |
Summary of Number of RSUs Granted and Weighted-average Grant Date Fair Value of RSUs | The Company granted 36,924 RSUs to directors for the six month period ended June 30, 2018. No RSUs were awarded for the six month period ended June 30, 2017. The table below shows the number of RSUs granted covering an equal number of our ordinary shares and the weighted-average grant date fair value of the RSUs granted:
|  | Number of Shares |  |  | Weighted average grant date fair value per share |
RSUs outstanding December 31, 2017 |  |  | — |  |  |  |  |
Granted |  |  | 36,924 |  |  | $ | 13.00 |
Shares vested |  |  | — |  |  |  |  |
Forfeited |  |  | — |  |  |  |  |
RSUs outstanding June 30, 2018 |  |  | 36,924 |  |  | $ | 13.00 |
Summary of Share-based Compensation Expense | The Company’s share-based compensation expense was classified in the consolidated statements of operations and comprehensive loss as follows:
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
|  | (unaudited) |  |  | (unaudited) |
Research and development expense |  | $ | 118 |  |  | $ | 42 |  |  | $ | 197 |  |  | $ | 85 |
General and administrative expense |  |  | 149 |  |  |  | 48 |  |  |  | 207 |  |  |  | 95 |

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + 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 (c) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration