Share-Based Compensation Arrangement By Share-Based Payment Award, Maximum Employee Subscription Salary

No definition available.

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period

+ References

No definition available.

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- Definition

The weighted average fair value of shares issued under the ESPP as determined under the Black Scholes option pricing model.

+ References

No definition available.

+ Details

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- References

No definition available.

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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.

+ References

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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

+ Details

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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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 share-based payment arrangement.

+ References

No definition available.

+ Details

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

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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.

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- Definition

Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement.

+ 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=116856206&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

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- Definition

Number of shares issued under share-based payment arrangement.

+ References

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ 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 (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-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=115993241&loc=d3e301413-122809

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

+ Details

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CAPITAL STOCK, Employee Stock Purchase Plan (Details) - USD ($)		1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Jul. 31, 2015	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2009	Mar. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized				9,440,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant				246,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized							2,500,000	1,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant				519,182
Weighted-average assumptions and fair value of shares issued under the ESPP
Expected dividend yield (in hundredths)				0.00%	0.00%	0.00%
Risk-free interest rate (in hundredths)				0.82%	2.37%	1.85%
Expected volatility (in hundredths)				72.10%	48.60%	55.30%
Expected life (in years)				6 months	5 months 26 days	6 months
Weighted-average fair value of shares issued (in dollars per share)				$ 1.40	$ 1.04	$ 0.94
Shares issued under the ESPP (in shares)				61,750	69,179	117,653
Average price of shares issued (in dollars per share)				$ 8.67	$ 7.48	$ 4.22
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized			650,000
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent				85.00%
Share-Based Compensation Arrangement By Share-Based Payment Award, Maximum Employee Subscription Salary				$ 5,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period	3 months	6 months