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Stock Plans (Detail Textuals) - USD ($) $ / shares in Units, $ in Millions | Sep. 05, 2024 | Aug. 31, 2019 | May 31, 2019
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Common Stock | New Stock Repurchase Program |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |
Stock repurchase program, authorized amount |  | $ 1.0 | $ 8.0
Dissenting Shares |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |
Repurchase of dissenting shares, value | $ 5.6 |  |
Dissenting Stock, Redemption Price Per Share | $ 8.63 |  |
Repurchase of dissenting shares, shares | 652,249 |  |

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