Note 14 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||||
|---|---|---|---|---|---|---|---|
May 09, 2025 |
Apr. 22, 2025 |
Aug. 31, 2025 |
Aug. 31, 2024 |
Aug. 31, 2025 |
Aug. 31, 2024 |
Nov. 30, 2024 |
|
| Private Placement [Member] | |||||||
| Stock Issued During Period, Shares, New Issues | 17,173,853 | ||||||
| Backstop Warrants [Member] | |||||||
| Warrants and Rights Outstanding | $ 39,607 | ||||||
| Class of Warrant or Right, Issued During Period | 25,500,000 | ||||||
| Donlin Gold [Member] | |||||||
| Accounts Receivable, after Allowance for Credit Loss | $ 651 | $ 651 | $ 420 | ||||
| Electrum [Member] | Private Placement [Member] | |||||||
| Stock Issued During Period, Shares, New Issues | 13,333,334 | ||||||
| Electrum [Member] | Backstop Warrants [Member] | |||||||
| Warrants and Rights Outstanding | $ 9,902 | ||||||
| Class of Warrant or Right, Issued During Period | 6,375,000 | ||||||
| Management and Administrative Services Provided [Member] | Donlin Gold [Member] | |||||||
| Related Party Transaction, Amounts of Transaction | $ 201 | $ 227 | $ 533 | $ 645 | |||