XML 54 R25.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 7 - Share-based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Notes Tables |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
|  | Numbers of shares |  |  | Weighted average grant date fair value |
|  |  |  |  |  |  | $ |
Outstanding at December 31, 2016 |  |  | - |  |  |  | - |
Granted |  |  | 1,141,477 |  |  |  | 20.76 |
Vested |  |  | (434,615 | ) |  |  | 22.19 |
Forfeited |  |  | (318,700 | ) |  |  | 19.80 |
Outstanding at December 31, 2017 |  |  | 388,162 |  |  |  | 19.93 |
Expected to vest at December 31, 2017 |  |  | 358,162 |  |  |  | 19.93 |
Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  | Weighted |  |  |  |
|  |  |  |  | Weighted |  |  |  |  |  | average |  |  |  |
|  |  |  |  | average |  |  | Weighted |  |  | remaining |  |  | Average |
|  | Numbers |  |  | exercise |  |  | average grant |  |  | contractual |  |  | intrinsic |
|  | of options |  |  | price |  |  | date fair value |  |  | term |  |  | value |
|  |  |  |  |  |  | $ |  |  |  | $ |  |  |  | Years |  |  |  | $ |
Outstanding at December 31, 2016 |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |  |  |  |  |
Granted |  |  | 343,000 |  |  |  | 29.00 |  |  |  | 19.91 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2017 |  |  | 343,000 |  |  |  | 29.00 |  |  |  |  |  |  |  | 9.98 |  |  |  | 27 |
Exercisable as of December 31, 2017 |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |  |  |  |  |
Vested and expected to vest at December 31, 2017 |  |  | 343,000 |  |  |  | 29.00 |  |  |  |  |  |  |  | 9.98 |  |  |  | 27 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Year Ended December 31, |
|  | 2017 |
Fair value of ordinary share |  |  | 34.00 |
Risk-free interest rate |  |  | 2.28 | %
Expected term (years) |  |  | 5.5 |
Expected volatility |  |  | 60 | %
Expected dividend yield |  |  | 0 | %
Contractual life (years) |  |  | 10 |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] |
|  | Year Ended |
|  | December 31, |
|  | 2017 |
Research and development |  |  | 17,753 |
General and administrative |  |  | 4,930 |
Total |  |  | 22,683 |

X
- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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