Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate

No definition available.

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- Definition

The number of exercisable share options (expected to vest) that may be converted as of the balance sheet date.

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No definition available.

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of expected to vest options that are exercisable.

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No definition available.

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- Definition

As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are expected to vest.

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No definition available.

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- Definition

Weighted average remaining contractual term for expected to vest options that are 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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No definition available.

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- Definition

The amount of time before the first tranche of the award starts vesting, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- References

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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.

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- Definition

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

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- References

No definition available.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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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.

+ References

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

+ References

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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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.

+ References

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

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- Definition

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

+ 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=120381028&loc=d3e5070-113901

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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.

+ References

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- References

No definition available.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

+ References

No definition available.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

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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.

+ 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.

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- Definition

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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- Definition

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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- 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.

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- Definition

Number of share options (or share units) exercised during the current period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Stock-based Compensation - Stock Option Awards (Details) - Stock Options - USD ($)	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Stock Option Awards [Abstract]
Term of awards	10 years
Shares
Outstanding, beginning of period (in shares)	121,260
Granted (in shares)	8,225
Exercised (in shares)	(19,413)
Forfeited (in shares)	(2,205)
Expired (in shares)	(6,733)
Outstanding, end of period (in shares)	101,134		121,260
Exercisable (in shares)	85,334
Expected to vest, assuming a 0% forfeiture rate over the vesting term (in shares)	14,099
Weighted- Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 20.80
Granted (in dollars per share)	36.26
Exercised (in dollars per share)	17.22
Forfeited (in dollars per share)	29.25
Expired (in dollars per share)	28.96
Outstanding, end of period (in dollars per share)	22.02		$ 20.80
Exercisable (in dollars per share)	19.99
Expected to vest, assuming a 0% forfeiture rate over the vesting term (in dollars per share)	$ 34.96
Additional Disclosures
Forfeiture rate	0.00%
Outstanding, weighted-average remaining contractual term	4 years 11 months 19 days		5 years 3 months 29 days
Exercisable, weighted-average remaining contractual term	4 years 4 months 9 days
Expected to vest, assuming a 0% forfeiture rate over the vesting term, weighted-average remaining contractual term	8 years 9 months
Outstanding, aggregate intrinsic value	$ 873,423		$ 1,842,687
Exercisable, aggregate intrinsic value	851,612
Expected to vest, assuming a 0% forfeiture rate over the vesting term, aggregate intrinsic value	0
Unrecognized compensation cost	$ 82,000
Share-based compensation arrangement, fair value assumptions and methodology [Abstract]
Annual dividend yield	1.60%	1.72%
Expected volatility	21.67%	21.68%
Risk-free interest rate	1.38%	2.64%
Expected term	6 years 6 months	6 years 6 months
Weighted-average grant date fair value per option granted (in dollars per share)	$ 7.14	$ 7.24
Maximum
Additional Disclosures
Remaining weighted-average vesting period	2 years 9 months 29 days
2008 Plan
Stock Option Awards [Abstract]
Annual vesting percentage	20.00%
Vesting commencement period from grant date	1 year
2013 Plan \| Minimum
Stock Option Awards [Abstract]
Award vesting period	1 year
2013 Plan \| Maximum
Stock Option Awards [Abstract]
Award vesting period	4 years