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Note 10 - Revenue, Deferred Revenue and Accounts Receivable - Summary of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
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Aug. 31, 2025 | Nov. 30, 2024
Deferred revenue balance, beginning of period | $ 1,808 | $ 1,936
Net additions to deferred revenue during the period | 49,413 | 66,120
Reductions in deferred revenue for revenue recognized during the period | (50,932) | (66,248)
Deferred revenue balance, end of period | 289 | 1,808
Less current portion | 249 | 1,791
Deferred revenue, non-current | $ 40 | $ 17

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