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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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- Definition 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. + References No definition available. + Details
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- Definition Aggregate number of common shares reserved for future issuance. + References 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 + Details
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- Definition 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. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References No definition available. + Details
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- Definition 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=56944662&loc=d3e3602-108585 + Details
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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + 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 (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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. + 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)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References No definition available. + Details
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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 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 S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.D.2) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section D -Subsection 2 + Details
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- Definition 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. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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