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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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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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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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Share-Based Compensation Expense - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-Based Compensation Expense (Details) [Line Items]
Share-based compensation expense	$ 1,081	$ 754	$ 1,462	$ 1,196
Unrecognized compensation cost			$ 13,206
Weighted-average period			3 years 3 months 18 days
Aggregate intrinsic value of stock options outstanding	5,340		$ 5,340
Aggregate intrinsic value of stock options exercisable	$ 5,108		5,108
Cash received from options exercised			$ 433	$ 23
Minimum
Share-Based Compensation Expense (Details) [Line Items]
Stock options employees and board members term			1 year
Maximum
Share-Based Compensation Expense (Details) [Line Items]
Stock options employees and board members term			4 years
Restricted stock units directors term			4 years