Equity Incentive Plan - Schedule of Stock Option by Exercise Price Range (Detail) - Exercise Price $0.95 - $8.75 [Member]	12 Months Ended
Mar. 31, 2021 USD ($) $ / shares shares
Stock Options Outstanding
Range of Exercise Price, Lower Limit	$ 0.95
Range of Exercise Price, Upper Limit	$ 8.75
Number Outstanding \| shares	12,588,068
Weighted Average Exercise Price	$ 2.92
Weighted Average Remaining Life (Years)	7 years 3 months 29 days
Aggregate Intrinsic Value \| $	$ 3,295,837
Stock Options Vested
Number Vested \| shares	8,232,897
Weighted Average Exercise Price	$ 3.77
Weighted Average Remaining Life (Years)	6 years 5 months 15 days
Aggregate Intrinsic Value \| $	$ 1,002,042

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

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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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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 exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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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 exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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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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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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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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