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Condensed Consolidated Statements Of Changes In Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member] | Treasury Stock [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Beginning balance, shares at Aug. 31, 2019 | 27,056 |  |  |  |  |
Beginning balance at Aug. 31, 2019 | $ 1,353 | $ 215,964 | $ 59,403 | $ 269 |  |
Beginning balance, shares, Treasury at Aug. 31, 2019 |  |  |  |  | (13,087) |
Beginning balance, Treasury at Aug. 31, 2019 |  |  |  |  | $ (194,975) |
Issuance of common stock from treasury, shares |  |  |  |  | 9 |
Issuance of common stock from treasury |  | 131 |  |  | $ 123 |
Purchase of treasury shares, shares |  |  |  |  |  |
Purchase of treasury shares |  |  |  |  | $ (3) |
Stock-based compensation |  | 1,851 |  |  |  |
Cumulative translation adjustments |  |  |  | (37) |  |
Net income (loss) |  |  | (544) |  |  |
Ending balance, shares at Nov. 30, 2019 | 27,056 |  |  |  |  |
Ending balance at Nov. 30, 2019 | $ 1,353 | 217,946 | 58,859 | 232 |  |
Ending balance, shares, Treasury at Nov. 30, 2019 |  |  |  |  | (13,078) |
Ending balance, Treasury at Nov. 30, 2019 |  |  |  |  | $ (194,855) |
Beginning balance, shares at Aug. 31, 2019 | 27,056 |  |  |  |  |
Beginning balance at Aug. 31, 2019 | $ 1,353 | 215,964 | 59,403 | 269 |  |
Beginning balance, shares, Treasury at Aug. 31, 2019 |  |  |  |  | (13,087) |
Beginning balance, Treasury at Aug. 31, 2019 |  |  |  |  | $ (194,975) |
Cumulative translation adjustments |  |  |  |  |  | $ (38)
Net income (loss) |  |  |  |  |  | (10,415)
Ending balance, shares at May. 31, 2020 | 27,056 |  |  |  |  |
Ending balance at May. 31, 2020 | $ 1,353 | 211,067 | 48,988 | 231 |  |
Ending balance, shares, Treasury at May. 31, 2020 |  |  |  |  | (13,198) |
Ending balance, Treasury at May. 31, 2020 |  |  |  |  | $ (204,591) |
Beginning balance, shares at Nov. 30, 2019 | 27,056 |  |  |  |  |
Beginning balance at Nov. 30, 2019 | $ 1,353 | 217,946 | 58,859 | 232 |  |
Beginning balance, shares, Treasury at Nov. 30, 2019 |  |  |  |  | (13,078) |
Beginning balance, Treasury at Nov. 30, 2019 |  |  |  |  | $ (194,855) |
Issuance of common stock from treasury, shares |  |  |  |  | 241 |
Issuance of common stock from treasury |  | (3,361) |  |  | $ 3,591 |
Purchase of treasury shares, shares |  |  |  |  | (393) |
Purchase of treasury shares |  |  |  |  | $ (13,830) |
Stock-based compensation |  | 1,793 |  |  |  |
Restricted stock award, shares |  |  |  |  | 21 |
Restricted stock award |  | (333) |  |  | $ 333 |
Cumulative translation adjustments |  |  |  | 90 |  |
Net income (loss) |  |  | 1,097 |  |  |
Ending balance, shares at Feb. 29, 2020 | 27,056 |  |  |  |  |
Ending balance at Feb. 29, 2020 | $ 1,353 | 216,045 | 59,956 | 322 |  |
Ending balance, shares, Treasury at Feb. 29, 2020 |  |  |  |  | (13,209) |
Ending balance, Treasury at Feb. 29, 2020 |  |  |  |  | $ (204,761) |
Issuance of common stock from treasury, shares |  |  |  |  | 11 |
Issuance of common stock from treasury |  | 126 |  |  | $ 170 |
Stock-based compensation |  | (5,104) |  |  |  |
Cumulative translation adjustments |  |  |  | (91) |  | (91)
Net income (loss) |  |  | (10,968) |  |  | (10,968)
Ending balance, shares at May. 31, 2020 | 27,056 |  |  |  |  |
Ending balance at May. 31, 2020 | $ 1,353 | 211,067 | 48,988 | 231 |  |
Ending balance, shares, Treasury at May. 31, 2020 |  |  |  |  | (13,198) |
Ending balance, Treasury at May. 31, 2020 |  |  |  |  | $ (204,591) |
Beginning balance, shares at Aug. 31, 2020 | 27,056 |  |  |  |  |
Beginning balance at Aug. 31, 2020 | $ 1,353 | 211,920 | 49,968 | 641 |  | 59,453
Beginning balance, shares, Treasury at Aug. 31, 2020 |  |  |  |  | (13,175) |
Beginning balance, Treasury at Aug. 31, 2020 |  |  |  |  | $ (204,429) |
Issuance of common stock from treasury, shares |  |  |  |  | 236 |
Issuance of common stock from treasury |  | (3,411) |  |  | $ 3,668 |
Purchase of treasury shares, shares |  |  |  |  | (89) |
Purchase of treasury shares |  |  |  |  | $ (1,530) |
Stock-based compensation |  | 1,158 |  |  |  |
Cumulative translation adjustments |  |  |  | 307 |  |
Net income (loss) |  |  | (892) |  |  |
Ending balance, shares at Nov. 30, 2020 | 27,056 |  |  |  |  |
Ending balance at Nov. 30, 2020 | $ 1,353 | 209,667 | 49,076 | 948 |  |
Ending balance, shares, Treasury at Nov. 30, 2020 |  |  |  |  | (13,028) |
Ending balance, Treasury at Nov. 30, 2020 |  |  |  |  | $ (202,291) |
Beginning balance, shares at Aug. 31, 2020 | 27,056 |  |  |  |  |
Beginning balance at Aug. 31, 2020 | $ 1,353 | 211,920 | 49,968 | 641 |  | 59,453
Beginning balance, shares, Treasury at Aug. 31, 2020 |  |  |  |  | (13,175) |
Beginning balance, Treasury at Aug. 31, 2020 |  |  |  |  | $ (204,429) |
Cumulative translation adjustments |  |  |  |  |  | 123
Net income (loss) |  |  |  |  |  | 11,816
Ending balance, shares at May. 31, 2021 | 27,056 |  |  |  |  |
Ending balance at May. 31, 2021 | $ 1,353 | 211,283 | 61,784 | 764 |  | 74,332
Ending balance, shares, Treasury at May. 31, 2021 |  |  |  |  | (12,901) |
Ending balance, Treasury at May. 31, 2021 |  |  |  |  | $ (200,852) |
Beginning balance, shares at Nov. 30, 2020 | 27,056 |  |  |  |  |
Beginning balance at Nov. 30, 2020 | $ 1,353 | 209,667 | 49,076 | 948 |  |
Beginning balance, shares, Treasury at Nov. 30, 2020 |  |  |  |  | (13,028) |
Beginning balance, Treasury at Nov. 30, 2020 |  |  |  |  | $ (202,291) |
Issuance of common stock from treasury, shares |  |  |  |  | 143 |
Issuance of common stock from treasury |  | (2,014) |  |  | $ 2,222 |
Purchase of treasury shares, shares |  |  |  |  | (58) |
Purchase of treasury shares |  |  |  |  | $ (1,441) |
Stock-based compensation |  | 1,599 |  |  |  |
Restricted stock award, shares |  |  |  |  | 28 |
Restricted stock award |  | (436) |  |  | $ 436 |
Cumulative translation adjustments |  |  |  | (33) |  |
Net income (loss) |  |  | (46) |  |  |
Ending balance, shares at Feb. 28, 2021 | 27,056 |  |  |  |  |
Ending balance at Feb. 28, 2021 | $ 1,353 | 208,816 | 49,030 | 915 |  |
Ending balance, shares, Treasury at Feb. 28, 2021 |  |  |  |  | (12,915) |
Ending balance, Treasury at Feb. 28, 2021 |  |  |  |  | $ (201,074) |
Issuance of common stock from treasury, shares |  |  |  |  | 14 |
Issuance of common stock from treasury |  | 97 |  |  | $ 222 |
Stock-based compensation |  | 2,370 |  |  |  |
Cumulative translation adjustments |  |  |  | (151) |  | (151)
Net income (loss) |  |  | 12,754 |  |  | 12,754
Ending balance, shares at May. 31, 2021 | 27,056 |  |  |  |  |
Ending balance at May. 31, 2021 | $ 1,353 | $ 211,283 | $ 61,784 | $ 764 |  | $ 74,332
Ending balance, shares, Treasury at May. 31, 2021 |  |  |  |  | (12,901) |
Ending balance, Treasury at May. 31, 2021 |  |  |  |  | $ (200,852) |

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