Share based compensation arrangement by share based payment award shares issued in period fair value.

No definition available.

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- Definition

Share based compensation arrangement by share based payments award grant date.

+ References

No definition available.

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- Definition

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
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-SubTopic 10
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- Definition

Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
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- Definition

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

+ References

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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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

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

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- Definition

The cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards other than stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

No definition available.

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- Definition

Period 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 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Discount rate from fair value on offering date that participants pay for shares.

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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.

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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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- Definition

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.

+ References

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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

The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

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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

Number of share instruments newly issued under a share-based compensation plan.

+ References

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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

Intrinsic value of equity-based compensation awards not vested. Excludes stock and unit options.

+ References

No definition available.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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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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Stock Incentive Plans - Additional Information (Detail) - USD ($)		12 Months Ended
	Jan. 02, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Apr. 21, 2016	Jan. 01, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised		$ 7,100
Total unrecognized compensation costs related to stock options and RSUs		$ 1,600,000
Stock options and RSUs expected weighted average period		2 years 2 months 12 days
Fair market value of Company's common stock		$ 2.70
Weighted average fair value of options to purchase common stock granted		$ 2.05	$ 2.53	$ 4.81
Total fair value of options vested during period		$ 1,100,000
Proceeds from issuances of common stock under equity incentive plans		$ 304,000	$ 203,000	$ 0
Shares available for issuance		365,074	361,672	718,007			332,995
Share-based compensation expense, tax benefit recognized		$ 0
Share-based compensation costs, capitalized		0
Share based compensation, Total expensed		1,998,000	$ 1,341,000	$ 535,000
General and administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation, Total expensed		$ 1,249,000	812,000	390,000
Non Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued		104,941
Fair value of shares issued		$ 563,000
Non Employee Director [Member] \| General and administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation, Total expensed		271,000	$ 255,000	$ 94,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of RSUs		827,000
Total unrecognized compensation costs related to stock options and RSUs		$ 1,200,000
Stock options and RSUs expected weighted average period		2 years 10 months 6 days
RSUs vest annual equal increments (in years)		4 years
RSUs granted period		2015-03
Inducement Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted period		2016-06
2014 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance of common stock		838,695				357,075
Outstanding shares of common stock, in percentage	4.00%
2014 Equity Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares may be added to the plan hereunder		865,252
2016 Inducement Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of common stock shares that might be granted					155,500
2014 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under ESPP		67,256	36,696
Proceeds from issuances of common stock under equity incentive plans		$ 300,000	$ 400,000
Shares available for issuance		253,117
Applicable exercise date an offering period shall be equal to percentage of the lesser of fair market value of common stock		85.00%