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Stock Plans (Detail Textuals) - USD ($) shares in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Aug. 31, 2019 | May 31, 2019
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |
Number of shares repurchased | 6 | 64 | 143 | 94 |  |
Aggregate cost of shares repurchased | $ 65,000 | $ 519,000 | $ 1,617,000 | $ 748,000 |  |
New Stock Repurchase Program | Common Stock |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  | $ 1,000,000.0 | $ 8,000,000.0

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