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Note 7 - Revenue, Deferred Revenue and Accounts Receivable - Summary of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
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Nov. 30, 2024 | Nov. 30, 2023
Deferred revenue balance | $ 1,936 | $ 798
Net additions to deferred revenue | 66,120 | 31,049
Reductions in deferred revenue for revenue recognized during the fiscal year | (66,248) | (29,912)
Deferred revenue balance | 1,808 | 1,936
Less current portion | 1,791 | 1,844
Deferred revenue, non-current | $ 17 | $ 91

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