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Note 9 - Taxes (Details Textual) - USD ($) $ in Thousands | 4 Months Ended | 5 Months Ended | 7 Months Ended | 8 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 11, 2021 | Jan. 31, 2021 | Aug. 27, 2020 | Jan. 31, 2022 | Jan. 31, 2023 | Apr. 04, 2022 | Jan. 31, 2020
Deferred Tax Assets, Valuation Allowance |  |  |  | $ 144,717 | $ 133,146 |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |  |  |  |  | (11,600) |  |
Deferred Income Tax Expense (Benefit), Total | $ (25,708) | $ (15,476) | $ 59,379 | 9,410 | (44,026) |  |
Deferred Tax Assets, Written Off |  |  |  |  | 32,200 |  |
Undistributed Earnings of Foreign Subsidiaries |  |  |  |  | 1,100 |  |
Unrecognized Tax Benefits, Ending Balance | 3,115 | 3,918 | 3,768 | 14,340 | 12,320 |  | $ 3,773
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total |  |  |  | 800 | 500 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total | $ 600 | $ 100 | $ 200 | $ 500 | 300 |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit |  |  |  |  | 0 |  |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards |  |  |  |  | 222,500 |  |
State and Local Jurisdiction [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards |  |  |  |  | 251,300 |  |
Foreign Tax Authority [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards |  |  |  |  | 100,500 |  |
Codecademy [Member] |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities |  |  |  |  | $ 21,621 | $ 21,615 |

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