Represents the annual increase in shares authorized for issuance, effective January 1, 2018, as a percent.

No definition available.

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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

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

+ References

No definition available.

+ Details

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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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

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

+ References

+ Details

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Stock-Based Compensation - Equity Incentive Plans (Details) - shares			12 Months Ended
	Dec. 31, 2018	Jan. 20, 2017	Dec. 31, 2018
Stock-Based Compensation
Number of options or stock awards available for grant under the equity incentive plans	245,678		245,678
2012 Plan
Stock-Based Compensation
Number of options issued under the plan	1,353,152
2016 Plan
Stock-Based Compensation
Number of options issued under the plan			1,130,871
2016 Plan \| Common Stock
Stock-Based Compensation
Annual increase in authorized shares (as a percent)		4.00%
2016 Plan \| Maximum \| Common Stock
Stock-Based Compensation
Shares issuable		854,321
Out-of-the-money options \| 2016 Plan \| Maximum \| Common Stock
Stock-Based Compensation
Additional shares issuable		103,023