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QUARTERLY UNAUDITED INFORMATION (Details) - Schedule of Quarterly Financial Information - Quarterly Unaudited Information [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
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Jan. 31, 2022 | Oct. 31, 2021 | Jul. 31, 2021 | Apr. 30, 2021 | Jan. 31, 2021 | Oct. 31, 2020 | Jul. 31, 2020 | Apr. 30, 2020
QUARTERLY UNAUDITED INFORMATION (Details) - Schedule of Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |
Net sales and revenue |  | $ 212,016 | $ 203,066 | $ 195,678 | $ 164,042 | $ 125,970 | $ 124,217 | $ 39,242 | $ 83,235
Gross (loss) profit |  | 38,777 | 25,152 | 14,154 | 19,477 | 8,274 | 18,929 | 553 | (8,223)
Net income from continuing operations |  | 25,917 | 14,888 | 8,039 | 7,963 | 4,891 | 11,312 | (2,867) | (8,578)
Net income attributable to REX common shareholders (continuing operations) |  | 21,267 | 13,326 | 5,710 | 7,269 | 3,344 | 9,036 | (2,679) | (7,821)
Net income attributable to REX common shareholders (discontinued operations) |  | 159 | 1,952 | 2,166 | 515 | 199 | (195) | 931 | 186
Net (loss) income attributable to REX common shareholders |  | $ 21,426 | $ 15,278 | $ 7,876 | $ 7,784 | $ 3,543 | $ 8,841 | $ (1,748) | $ (7,635)
Basic and diluted net (loss) income per share attributable to REX common shareholders (continuing operations) (in Dollars per share) | [1] | $ 3.58 | $ 2.23 | $ 0.95 | $ 1.21 | $ 0.56 | $ 1.47 | $ (0.43) | $ (1.24)
Basic and diluted net (loss) income per share attributable to REX common shareholders (discontinued operations) (in Dollars per share) | [1] | 0.03 | 0.33 | 0.36 | 0.09 | 0.03 | (0.03) | 0.15 | 0.03
Basic and diluted net (loss) income per share attributable to REX common shareholders (in Dollars per share) | [1] | $ 3.61 | $ 2.56 | $ 1.31 | $ 1.3 | $ 0.59 | $ 1.44 | $ (0.28) | $ (1.21)
[1] | The total of the quarterly net income per share amounts do not equal the annual net income per share amounts due to the impact of varying amounts of shares outstanding during the year.

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