Share based compensation arrangement by share based payment award modification of original options expected to vest.

No definition available.

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- Definition

Share based compensation arrangement by share based payment award modification of original options expected to vest fair value.

+ References

No definition available.

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- Definition

Share based compensation arrangements by share based payment award options after anti-dilutive adjustments effect vested and expected to vest in period weighted average exercise price.

+ References

No definition available.

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- Definition

Share-based compensation vested options exercisable term.

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No definition available.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

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- Definition

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

+ References

No definition available.

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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No definition available.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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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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- 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).

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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).

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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

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

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

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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.

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- Definition

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

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- Definition

Change in the weighted average exercise price of options outstanding.

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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.

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

+ References

No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, 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 options vested.

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No definition available.

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Share-Based Compensation (Details Textual) - USD ($)				1 Months Ended	3 Months Ended	12 Months Ended
Share-Based Compensation (Details Textual) - USD ($)	Jul. 14, 2016	Jan. 02, 2016	Aug. 27, 2015	Jun. 30, 2007	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 28, 2014	Dec. 29, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options, Outstanding, Number						3,402,481	2,419,529	755,617	798,171
Adjusted option, Weighted Average Exercise Price						$ 7.04
Share-based compensation						$ 3,878,000	$ 809,000	$ 270,000
Weighted Average Exercise Price						$ 9.02	$ 8.16	$ 6.09	$ 5.97
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Expense Not yet Recognized, Weighted-average Period for Recognition						10 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period						141,296	0	0
Units Granted, Weighted Average Grant- Date Fair Value						$ 12.57
Unamortized Compensation Related to Unvested Units						$ 1,600,000
Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Expense						3,900,000	$ 800,000	$ 300,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense						$ 0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate						0.00%
Weighted Average Remaining Contractual Term						7 years 10 months 24 days
Weighted Average Exercise Price						$ 9.02
Aggregate Intrinsic Value						$ 11,000,000
Options, Exercisable, Weighted Average Exercise Price						$ 4.50
Options, Exercisable, Weighted Average Remaining Contractual Term						1 year 8 months 12 days
Options, Exercisable, Aggregate Intrinsic Value						$ 3,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value						$ 1,800,000	$ 100,000	$ 100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value						$ 4.80	$ 3.72	$ 4.65
Stock Options, Unrecognized Share-based Compensation Expense						$ 10,500,000
Share-based Compensation Expense Not yet Recognized, Weighted-average Period for Recognition						3 years 2 months 12 days
Adjusted Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum Number of Shares Authorized per One Participant						2,337,643
Stock Options, Vested, Number						429,573
Outstanding Stock Option, Modified Options, Decrease in Exercise Price	$ 1.71
Adjusted option, Weighted Average Exercise Price						$ 7.04
Modification of Original Options, Unvested, Number						1,908,070
Modification Original Options, Unvested Options, Incremental Fair Value						$ 1,700,000
Share-based compensation					$ 700,000
2015 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options Expiration Term			10 years
Number of Shares Authorized			2,250,000
Number of Shares Annual Increase		874,709	1,800,000
Plan Shares Annual Increase, Percentage			4.00%
Maximum Number of Shares Authorized per One Participant			2,000,000			53,248
Stock Options, Outstanding, Number						2,930,165
Stock Options, Vested, Number						599,446
2015 Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of RSUs Outstanding						141,296
Number of RSUs Vested						0
Stock Option and Compensation Plan of 2007 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares Authorized				1,250,000
Maximum Number of Shares Authorized per One Participant						221,348
Stock Options, Outstanding, Number						461,114
Stock Options, Vested, Number						399,827
Share-Based Compensation Vested Options Exercisable Term				10 years
Stock Option and Compensation Plan 1998 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum Number of Shares Authorized per One Participant						0
Stock Options, Outstanding, Number						11,202