Discount value on shares issued under employee stock purchase plan.

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- References

No definition available.

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- Definition

The estimated fair value of nonvested equity-based awards on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan) as of grant date.

+ References

No definition available.

+ Details

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- Definition

The aggregate intrinsic value of stock options granted.

+ References

No definition available.

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- Definition

For presentations that combine terminations, the number of shares under options that were exercised and expired during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

No definition available.

+ Details

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that exercised and expired.

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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- References

No definition available.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- References

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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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

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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- References

No definition available.

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- Definition

Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

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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.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Number of non-vested options forfeited.

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No definition available.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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-Name Accounting Standards Codification
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Share-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	$ 1,810	$ 27,305	$ 3,330	$ 27,305
Additional Disclosures [Abstract]
Share price (in dollars per share)	$ 15.00		$ 15.00
Manufacturing and Supply [Member]
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	$ 72	345	$ 116	345
Research and Development [Member]
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	140	2,186	348	2,186
Selling, General and Administrative [Member]
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	1,598	24,774	2,866	24,774
Non-voting Common Shares [Member]
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	0	27,298	0	27,298
Restricted Stock Units [Member]
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	$ 467	0	$ 930	0
Number of Units [Roll Forward]
Unvested, at beginning of period (in shares)			205,000
Granted (in shares)			0
Vested (in shares)			(59,000)
Forfeited (in shares)			(3,000)
Unvested, at end of period (in shares)	143,000		143,000
Weighted Average Grant Date Fair Value Per Share [Abstract]
Unvested, at beginning of period (in dollars per share)			$ 14.77
Granted (in dollars per share)			0
Vested (in dollars per share)			15.03
Forfeited (in dollars per share)			13.00
Unvested, at end of period (in dollars per share)	$ 14.70		$ 14.70
Grant date fair value of shares vested during the period	$ 896		$ 896
Unrecognized compensation costs of RSU awards	1,881		$ 1,881
Additional Disclosures [Abstract]
Vesting period			3 years
Stock Options [Member]
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	$ 1,323	7	$ 2,380	7
Number of Options [Roll Forward]
Outstanding at beginning of period (in shares)			1,033,000
Granted (in shares)			975,000
Forfeited (in shares)			(25,000)
Exercised, expired (in shares)			0
Outstanding at end of period (in shares)	1,983,000		1,983,000
Vested or expected to vest at end of period (in shares)	1,868,000		1,868,000
Exercisable at end of period (in shares)	223,000		223,000
Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period (In dollars per share)			$ 14.72
Granted (in dollars per share)			7.51
Forfeited (in dollars per share)			7.77
Exercised, expired (in dollars per share)			0
Outstanding at end of period (In dollars per share)	$ 11.26		11.26
Vested or expected to vest at end of period (in dollars per share)	11.12		11.12
Exercisable at end of period (in dollars per share)	14.32		$ 14.32
Fair Value Assumptions [Abstract]
Expected dividend yield			0.00%
Additional Disclosures [Abstract]
Weighted average grant date fair value (in dollars per share)			$ 7.51
Share price (in dollars per share)	$ 4.20		$ 4.20
Intrinsic value of options granted			$ 0
Compensation Cost Not yet Recognized [Abstract]
Unrecognized compensation expenses related to non-vested stock options	$ 11,352		$ 11,352
Unrecognized compensation cost, recognition period			2 years 3 months 18 days
Stock Options [Member] \| Minimum [Member]
Weighted Average Exercise Price [Abstract]
Granted (in dollars per share)			$ 4.38
Fair Value Assumptions [Abstract]
Expected volatility			85.00%
Expected term (years)			5 years 6 months
Risk-free interest rate			1.90%
Stock Options [Member] \| Maximum [Member]
Weighted Average Exercise Price [Abstract]
Granted (in dollars per share)			$ 8.05
Fair Value Assumptions [Abstract]
Expected volatility			95.00%
Expected term (years)			6 years 1 month 6 days
Risk-free interest rate			2.60%
Employee Stock Purchase Plan [Member]
Share-based Compensation expenses [Abstract]
Share-based compensation expenses	$ 20	$ 0	$ 20	$ 0
Employee Stock Purchase Plan [Abstract]
Purchase price of common stock as percentage of fair market value			85.00%
Shares issued under employee stock purchase plan (in shares)			31,393
Discount value on shares issued under employee stock purchase plan			$ 20