The number of directors constituting the Board of Directors.

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Date 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 CCYY-MM-DD format.

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No definition available.

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The fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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No definition available.

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Aggregate number of common shares reserved for future issuance.

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Amount of paid and unpaid cash dividends declared and applicable to holders of share-based compensation, for example, but not limited to, non-vested shares, stock options, or restricted stock units.

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No definition available.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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No definition available.

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Unrecognized cost of unvested options awarded to employees as compensation.

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No definition available.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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

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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 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.

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- Definition

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

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

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

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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.

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No definition available.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Equity Incentive Plans - Company's Equity Incentive Plans (Details) $ / shares in Units, $ in Thousands	2 Months Ended	3 Months Ended				4 Months Ended		5 Months Ended	6 Months Ended	7 Months Ended		8 Months Ended	12 Months Ended
	Feb. 20, 2014 $ / shares shares	Dec. 31, 2016 USD ($) shares	Apr. 13, 2016 shares	Apr. 13, 2015 $ / shares shares	Mar. 20, 2015 shares	May 09, 2016 $ / shares shares	May 03, 2013 shares	May 31, 2014 shares	Jul. 11, 2014 USD ($) $ / shares shares	Jul. 31, 2016 shares	Jul. 31, 2014 $ / shares shares	Sep. 12, 2016 $ / shares shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 shares
Equity Incentive Plans [Line Items]
Number of shares granted													1,035,000	135,230	117,201
Number of directors													9
Number of shares vested during the period													783,545	78,833	89,968
Shares cancelled													1,685		3,733
Dividends on non-vested shares \| $													$ 0	$ 0	$ 0
Share based compensation \| $									$ 1,808				$ 4,166	$ 2,684	$ 5,834
Number of options granted													0	104,250
Total unrecognised compensation cost relating to non-vested share option \| $		$ 483											$ 483
Total unrecognised compensation cost relating to restricted share awards \| $		$ 923											$ 923
Weighted average remaining term for non-vested share option awards													3 years 4 months 13 days
Weighted average remaining term for non-vested restricted share awards													6 months
Unvested shares		385,000											385,000	135,230	78,833	55,333
Total fair value of shares vested during the period \| $													$ 3,580	$ 1,301	$ 5,773
Equity Incentive Plan 2014
Equity Incentive Plans [Line Items]
Shares reserved for issuance	86,000
Number of shares granted	78,833
Grant date fair value \| $ / shares	$ 54.3
Stock issued during period, share based compensation								78,833
Number of shares vested during the period					78,833
Equity Incentive Plan 2015
Equity Incentive Plans [Line Items]
Shares reserved for issuance				280,000
Number of shares granted				135,230
Grant date fair value \| $ / shares				$ 17.75
Stock issued during period, share based compensation			131,545
Number of shares vested during the period			135,230
Equity Incentive Plan 2016
Equity Incentive Plans [Line Items]
Shares reserved for issuance						940,000
Number of shares granted						690,000
Vesting date													Mar. 01, 2018
Grant date fair value \| $ / shares						$ 3.75
Stock issued during period, share based compensation		558,050
Number of shares vested during the period										650,000
Unvested shares		40,000											40,000
Employee Stock Option
Equity Incentive Plans [Line Items]
Number of options granted				104,250
Option exercise price \| $ / shares				$ 27.5
Fair value assumptions - Expected term				5 years
Fair value assumptions - Expected volatility rate				59.274%
Fair value assumptions - Risk free interest rate				1.30%
Directors
Equity Incentive Plans [Line Items]
Number of shares granted	1,600
Stock issued during period, share based compensation								1,600
Number of shares vested during the period	1,600
Two directors
Equity Incentive Plans [Line Items]
Number of shares granted									3,000
Number of directors									2
Grant date fair value \| $ / shares									$ 60.15
Stock issued during period, share based compensation			3,000
Number of shares vested during the period									3,000
Former Chief Executive Officer \| Renewal consultancy agreements
Equity Incentive Plans [Line Items]
Number of shares granted							5,600
Former Chief Executive Officer \| Agreement to terminate the consultancy agreement
Equity Incentive Plans [Line Items]
Grant date fair value \| $ / shares											$ 53.55
Stock issued during period, share based compensation											33,768
Former Chief Executive Officer \| First installment \| Renewal consultancy agreements
Equity Incentive Plans [Line Items]
Vesting date													May 03, 2014
Stock issued during period, share based compensation								1,866
Number of shares vested during the period															1,866
Former Chief Executive Officer \| Second installment \| Renewal consultancy agreements
Equity Incentive Plans [Line Items]
Vesting date													May 03, 2015
Shares cancelled											1,867
Former Chief Executive Officer \| Third installment \| Renewal consultancy agreements
Equity Incentive Plans [Line Items]
Vesting date													May 03, 2016
Shares cancelled											1,867
Directors and officers
Equity Incentive Plans [Line Items]
Number of shares granted												345,000
Grant date fair value \| $ / shares												$ 4.94
Directors and officers \| First installment
Equity Incentive Plans [Line Items]
Vesting date													Mar. 30, 2017
Unvested shares		305,000											305,000
Directors and officers \| Second installment
Equity Incentive Plans [Line Items]
Vesting date													Mar. 01, 2018
Unvested shares		40,000											40,000