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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Accumulated other comprehensive loss | Retained Earnings (Accumulated Deficit)
--- | --- | --- | --- | --- | ---
Balance, shares at May. 31, 2021 |  | 23,725 |  |  |
Balance, amount at May. 31, 2021 | $ 11,449 | $ 237 | $ 87,553 | $ (28) | $ (76,313)
Issuance of common stock under employee plans, shares |  | 1,760 |  |  |
Issuance of common stock under employee plans, amount | 3,560 | $ 17 | 3,543 | 0 | 0
Proceeds from public offerings, net of issuance cost, shares |  | 1,697 |  |  |
Proceeds from public offerings, net of issuance cost, amount | 24,030 | $ 17 | 24,013 | 0 | 0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares |  | 62 |  |  |
Shares repurchased for tax withholdings on vesting of restricted stock units, amount | (429) | $ 0 | (429) | 0 | 0
Stock-based compensation | 3,006 | 0 | 3,006 | 0 | 0
Net income | 9,450 | 0 | 0 | 0 | 9,450
Foreign currency translation adjustment | (77) | $ 0 | 0 | (77) | 0
Balance, shares at May. 31, 2022 |  | 27,120 |  |  |
Balance, amount at May. 31, 2022 | 50,989 | $ 271 | 117,686 | (105) | (66,863)
Issuance of common stock under employee plans, shares |  | 1,388 |  |  |
Issuance of common stock under employee plans, amount | 2,562 | $ 13 | 2,549 | 0 | 0
Proceeds from public offerings, net of issuance cost, shares |  | 209 |  |  |
Proceeds from public offerings, net of issuance cost, amount | 6,820 | $ 2 | 6,818 | 0 | 0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares |  | 178 |  |  |
Shares repurchased for tax withholdings on vesting of restricted stock units, amount | (2,060) | $ (1) | (2,059) | 0 | 0
Stock-based compensation | 2,782 | 0 | 2,782 | 0 | 0
Net income | 14,557 | 0 | 0 | 0 | 14,557
Foreign currency translation adjustment | (33) | 0 | 0 | (33) | 0
Net unrealized loss on investments | (17) | $ 0 | 0 | (17) | 0
Balance, shares at May. 31, 2023 |  | 28,539 |  |  |
Balance, amount at May. 31, 2023 | 75,600 | $ 285 | 127,776 | (155) | (52,306)
Issuance of common stock under employee plans, shares |  | 501 |  |  |
Issuance of common stock under employee plans, amount | 1,807 | $ 4 | 1,803 | 0 | 0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares |  | 45 |  |  |
Shares repurchased for tax withholdings on vesting of restricted stock units, amount | (1,596) | $ 0 | (1,596) | 0 | 0
Stock-based compensation | 2,701 | 0 | 2,701 | 0 | 0
Net income | 33,156 | 0 | 0 | 0 | 33,156
Foreign currency translation adjustment | (20) | 0 | 0 | (20) | 0
Net unrealized loss on investments | 17 | 0 | 0 | 17 | 0
Issuance cost of common stock offering | (72) | $ 0 | (72) | 0 | 0
Balance, shares at May. 31, 2024 |  | 28,995 |  |  |
Balance, amount at May. 31, 2024 | $ 111,593 | $ 289 | $ 130,612 | $ (158) | $ (19,150)

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