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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Parent | Common Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Non-controlling Interest | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Apr. 30, 2020 | $ 509,901 | $ 2 | $ 181,481 | $ 328,090 | $ 328 |  |
Balance, Beginning at Apr. 30, 2020 |  |  |  |  |  |  | $ 509,901
Balance (in shares) at Apr. 30, 2020 |  | 24,063,639 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income (loss) | 12,174 |  |  | 12,174 |  |  | 12,174
Net (income) loss attributable to noncontrolling interest |  |  |  |  |  | $ (59) | 59
Net Income (loss) including non-controlling interest |  |  |  |  |  |  | 12,115
Unrealized loss on investments | (61) |  |  |  | (61) |  | (61)
Foreign currency translation | 75 |  |  |  | 75 |  | 75
Stock options exercised | 86 |  | 86 |  |  |  | 86
Stock options exercised (in shares) |  | 3,500 |  |  |  |  |
Restricted stock awards (in shares) |  | 60,592 |  |  |  |  |
Restricted stock awards forfeited (in shares) |  | (515) |  |  |  |  |
Restricted stock awards forfeited (in shares) |  | 515 |  |  |  |  |
Tax withholding payment related to net share settlement of equity awards | (1,778) |  | (1,778) |  |  |  | (1,778)
Tax withholding payment related to net share settlement of equity awards (in shares) |  | (23,236) |  |  |  |  |
Stock-based compensation | 3,509 |  | 3,509 |  |  |  | 3,509
Balance at Oct. 31, 2020 | 523,906 | $ 2 | 183,298 | 340,264 | 342 | (59) |
Balance, Ending at Oct. 31, 2020 |  |  |  |  |  |  | 523,847
Balance (in shares) at Oct. 31, 2020 |  | 24,103,980 |  |  |  |  |
Balance at Jul. 31, 2020 | 519,929 | $ 2 | 181,406 | 338,170 | 351 | (37) |
Balance, Beginning at Jul. 31, 2020 |  |  |  |  |  |  | 519,892
Balance (in shares) at Jul. 31, 2020 |  | 24,104,564 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income (loss) | 2,094 |  |  | 2,094 |  |  | 2,094
Net (income) loss attributable to noncontrolling interest |  |  |  |  |  | (22) | 22
Net Income (loss) including non-controlling interest |  |  |  |  |  |  | 2,072
Unrealized loss on investments | (9) |  |  |  | (9) |  | (9)
Restricted stock awards forfeited (in shares) |  | 245 |  |  |  |  |
Restricted stock awards forfeited (in shares) |  | (245) |  |  |  |  |
Tax withholding payment related to net share settlement of equity awards | (22) |  | (22) |  |  |  | (22)
Tax withholding payment related to net share settlement of equity awards (in shares) |  | (339) |  |  |  |  |
Stock-based compensation | 1,914 |  | 1,914 |  |  |  | 1,914
Balance at Oct. 31, 2020 | 523,906 | $ 2 | 183,298 | 340,264 | 342 | (59) |
Balance, Ending at Oct. 31, 2020 |  |  |  |  |  |  | 523,847
Balance (in shares) at Oct. 31, 2020 |  | 24,103,980 |  |  |  |  |
Balance at Apr. 30, 2021 | 612,093 | $ 2 | 260,327 | 351,421 | 343 | 14 | 612,093
Balance, Beginning at Apr. 30, 2021 |  |  |  |  |  |  | 612,107
Balance (in shares) at Apr. 30, 2021 |  | 24,777,295 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income (loss) | (11,456) |  |  | (11,456) |  |  | (11,456)
Net (income) loss attributable to noncontrolling interest |  |  |  |  |  | 94 | (94)
Net Income (loss) including non-controlling interest |  |  |  |  |  |  | (11,362)
Unrealized loss on investments | (3) |  |  |  | (3) |  | (3)
Foreign currency translation | (2,017) |  |  |  | (2,017) |  | (2,017)
Stock options exercised | 119 |  | 119 |  |  |  | 119
Stock options exercised (in shares) |  | 4,000 |  |  |  |  |
Restricted stock awards (in shares) |  | 52,226 |  |  |  |  |
Restricted stock awards forfeited (in shares) |  | (15,751) |  |  |  |  |
Restricted stock awards forfeited (in shares) |  | 15,751 |  |  |  |  |
Tax withholding payment related to net share settlement of equity awards | (1,176) |  | (1,176) |  |  |  | (1,176)
Tax withholding payment related to net share settlement of equity awards (in shares) |  | (11,941) |  |  |  |  |
Change in non-controlling interest |  |  |  |  |  | 224 | 224
Stock-based compensation | 2,342 |  | 2,342 |  |  |  | 2,342
Balance at Oct. 30, 2021 | 599,902 | $ 2 | 261,612 | 339,965 | (1,677) | 332 | 599,902
Balance, Ending at Oct. 30, 2021 |  |  |  |  |  |  | 600,234
Balance (in shares) at Oct. 30, 2021 |  | 24,805,829 |  |  |  |  |
Balance at Jul. 31, 2021 | 598,240 | $ 2 | 261,192 | 337,440 | (394) | 77 |
Balance, Beginning at Jul. 31, 2021 |  |  |  |  |  |  | 598,317
Balance (in shares) at Jul. 31, 2021 |  | 24,811,802 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income (loss) | 2,525 |  |  | 2,525 |  |  | 2,525
Net (income) loss attributable to noncontrolling interest |  |  |  |  |  | 31 | (31)
Net Income (loss) including non-controlling interest |  |  |  |  |  |  | 2,556
Unrealized loss on investments | 1 |  |  |  | 1 |  | 1
Foreign currency translation | (1,284) |  |  |  | (1,284) |  | (1,284)
Restricted stock awards (in shares) |  | 3,638 |  |  |  |  |
Restricted stock awards forfeited (in shares) |  | (9,611) |  |  |  |  |
Restricted stock awards forfeited (in shares) |  | 9,611 |  |  |  |  |
Change in non-controlling interest |  |  |  |  |  | 224 | 224
Stock-based compensation | 420 |  | 420 |  |  |  | 420
Balance at Oct. 30, 2021 | $ 599,902 | $ 2 | $ 261,612 | $ 339,965 | $ (1,677) | $ 332 | 599,902
Balance, Ending at Oct. 30, 2021 |  |  |  |  |  |  | $ 600,234
Balance (in shares) at Oct. 30, 2021 |  | 24,805,829 |  |  |  |  |

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