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Stock-Based Compensation - Early Exercise of Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended
	Sep. 30, 2020	Mar. 31, 2022
Stock-Based Compensation
Proceeds from exercise of stock options	$ 600	$ 33
Exercise of stock options (in shares)	135,525	22,744
Exercise price, lower range (in dollars per share)	$ 4.406
Exercise price, higher range (in dollars per share)	$ 4.824
Number of shares vested		95,916
Current liability from early exercises of stock options		$ 200

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

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

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

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