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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	Apr. 13, 2015 $ / shares shares	Mar. 20, 2015 shares	Mar. 21, 2014 shares	Mar. 21, 2013 $ / shares shares	May. 03, 2013 shares	May. 31, 2014 shares	Jul. 11, 2014 USD ($) $ / shares shares	Jun. 27, 2013 shares	Jul. 31, 2014 $ / shares shares	Sep. 11, 2013 shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($) shares
Equity Incentive Plans [Line Items]
Number of shares granted												676,150	586,009	279,333
Number of directors												9
Number of shares vested during the period												394,167	449,842	21,333
Shares cancelled													18,667
Share based compensation | $								$ 1,808				$ 2,684	$ 5,834	$ 1,488
Total fair value of shares vested during the period | $												$ 1,301	$ 5,773	$ 136
Number of options granted												521,250
Total unrecognised compensation cost relating to non-vested share option | $												$ 630
Total unrecognised compensation cost relating to restricted share awards | $												$ 680
Weighted average remaining term for non-vested share option awards												4 years 4 months 14 days
Weighted average remaining term for non-vested restricted share awards												4 months 11 days
Equity Incentive Plan 2013
Equity Incentive Plans [Line Items]
Shares reserved for issuance					240,000
Number of shares granted					239,333
Grant date fair value | $ / shares					$ 6.46
Stock issued during period, share based compensation											239,333
Number of shares vested during the period				239,333
Equity Incentive Plan 2014
Equity Incentive Plans [Line Items]
Shares reserved for issuance	430,000
Number of shares granted	394,167
Grant date fair value | $ / shares	$ 10.86
Stock issued during period, share based compensation							394,167
Number of shares vested during the period			394,167
Equity Incentive Plan 2015
Equity Incentive Plans [Line Items]
Shares reserved for issuance		1,400,000
Number of shares granted		676,150
Vesting date												Apr. 13, 2016
Grant date fair value | $ / shares		$ 3.55
Employee Stock Option
Equity Incentive Plans [Line Items]
Number of options granted		521,250
Option exercise price | $ / shares		$ 5.5
Fair value assumptions - Expected term		5 years
Fair value assumptions - Expected volatility rate		59.274%
Fair value assumptions - Risk free interest rate		1.30%
Former Chief Executive Officer
Equity Incentive Plans [Line Items]
Number of shares granted														18,667
Company's former director
Equity Incentive Plans [Line Items]
Number of shares granted					12,000
Stock issued during period, share based compensation									12,000
Directors
Equity Incentive Plans [Line Items]
Number of shares granted	8,000
Stock issued during period, share based compensation							8,000
Number of shares vested during the period	8,000
Two directors
Equity Incentive Plans [Line Items]
Number of shares granted								15,000
Number of directors								2
Grant date fair value | $ / shares								$ 12.03
Number of shares vested during the period								15,000
Renewal consultancy agreements | CEO
Equity Incentive Plans [Line Items]
Number of shares granted						28,000
Agreement to terminate the consultancy agreement | Former Chief Executive Officer
Equity Incentive Plans [Line Items]
Grant date fair value | $ / shares										$ 10.71
Stock issued during period, share based compensation										168,842
First installment | Renewal consultancy agreements | CEO
Equity Incentive Plans [Line Items]
Vesting date												May 03, 2014
Stock issued during period, share based compensation							9,333
Number of shares vested during the period													9,333
Second installment | Renewal consultancy agreements | CEO
Equity Incentive Plans [Line Items]
Vesting date												May 03, 2015
Shares cancelled										9,333
Third installment | Renewal consultancy agreements | CEO
Equity Incentive Plans [Line Items]
Vesting date												May 03, 2016
Shares cancelled										9,334

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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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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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Aggregate number of common shares reserved for future issuance.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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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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Unrecognized cost of unvested options awarded to employees as compensation.

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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.

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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).

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

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

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

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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.

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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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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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