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Accounting Policies
- Nature Of Operations And Summary Of Significant Accounting Policies (Policy)
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- Uncategorized Items - clar-20201231x10k.htm

Stock-Based Compensation Plan (Schedule Of Shares Authorized Under Stock Option Plans, By Exercise Price Range) (Details)

v3.20.4

Stock-Based Compensation Plan (Schedule Of Shares Authorized Under Stock Option Plans, By Exercise Price Range) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options \| shares	3,901
Exercisable options \| shares	2,088
Outstanding options, remaining life in years	6 years
Exercisable options, remaining life in years	5 years 6 months
Exercisable options, weighted average exercise price	$ 7.48
$4.38 - $12.51 Exercise Price Range [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit	4.38
Exercise price, upper limit	$ 12.51
Outstanding options \| shares	2,868
Exercisable options \| shares	1,990
Outstanding options, remaining life in years	5 years 4 months 24 days
Exercisable options, remaining life in years	5 years 4 months 24 days
Exercisable options, weighted average exercise price	$ 7.20
$12.51 - $16.93 Exercise Price Range [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit	12.51
Exercise price, upper limit	$ 16.93
Outstanding options \| shares	1,033
Exercisable options \| shares	98
Outstanding options, remaining life in years	9 years
Exercisable options, remaining life in years	7 years 4 months 24 days
Exercisable options, weighted average exercise price	$ 13.23

- Definition

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Weighted average remaining contractual term of exercisable stock options, 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 of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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