Share-based Compensation Arrangement by Share-based Payment Award, Number of Purchase Periods

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Offering Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Employee's Compensation Maximum

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Purchase Period, Term

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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

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.

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- Definition

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

+ References

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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-Based Compensation - Additional Information (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2018 purchasePeriod	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) shares	Sep. 30, 2020 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 720	$ 609	$ 2,118	$ 1,655
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense		200		$ 200
Weighted-average period expected to be recognized (in years)				7 months 6 days
Percentage of employee's compensation, maximum	15.00%
Offering period (in months)	24 months
Number of purchase periods \| purchasePeriod	4
Purchase period, term	6 months
Percentage of lower of fair market value	85.00%
Stock-based compensation expense		100	$ 46	$ 200	$ 100
Issuance of common stock through employee share purchase plan (in shares) \| shares				72,105	0
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense		$ 5,100		$ 5,100
Weighted-average period expected to be recognized (in years)				2 years 3 months 18 days