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v3.23.3

Stockholders' Equity - Stock Options and Employee Stock Purchase Plan - Additional Information (Detail) - USD ($) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Aug. 28, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Oct. 31, 2023
Class Of Stock [Line Items] |  |  |  |  |  |  |
Stock options granted |  | 0 |  |  |  |  |
Voluntarily forfeited outstanding stock options |  |  |  |  | 575,278 |  |
Expired, Options Outstanding |  |  |  |  | 157,082 |  |
Stock-based compensation |  | $ 675,000 |  | $ 673,000 | $ 1,150,000 | $ 1,333,000 |
Weighted-average remaining contractual term of stock options exercisable |  |  |  |  | 5 years 29 days |  |
Number of common stock shares approved under ESPP |  | 2,707,256 |  |  | 2,707,256 |  |
Expected term |  | 0 years | [1] | 6 years | 6 years | 6 years |
Executive Chairman [Member] |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Voluntarily forfeited outstanding stock options | 462,500 |  |  |  |  |  |
Unvested, cancelled shares | 312,918 |  |  |  |  |  |
Expired, Options Outstanding | 149,582 |  |  |  |  |  |
Executive Chairman [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Stock-based compensation | $ 519,000 |  |  |  |  |  |
2016 Employee Stock Purchase Plan [Member] |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Number of common stock shares approved under ESPP |  | 75,000 |  |  | 75,000 |  |
Employee subscription rate |  | 15.00% |  |  | 15.00% |  |
Compensation amount per employee |  |  |  |  | $ 25,000 |  |
Number of shares per employee |  |  |  |  | 500 |  |
Fair market value at discount |  |  |  |  | 85.00% |  |
Purchase period |  |  |  |  | 6 months |  |
Initial offering period |  |  |  |  | 2016-09 |  |
Description of plan |  |  |  |  | Shares under the 2016 ESPP are purchased at 85 percent of the fair market value at the lower of (i) the closing price on the first trading day of the six-month purchase period or (ii) the closing price on the last trading day of the six-month purchase period. |  |
Shares available for purchase under ESPP |  | 58,426 |  |  | 58,426 |  |
2023 Employee Stock Purchase Plan [Member] | Subsequent Event [Member] |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Number of common stock shares approved under ESPP |  |  |  |  |  |  | 45,000
Equity Incentive Plan 2022 [Member] |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Stock options granted |  |  |  |  | 131,257 |  |
Number of common stock shares approved under ESPP |  | 1,672,574 |  |  | 1,672,574 |  |
[1] | There were no stock options granted during the three months ended September 30, 2023.

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