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v3.21.1

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Jan. 06, 2020 | Jan. 31, 2020 | Feb. 28, 2021 | Feb. 29, 2020 | Nov. 30, 2020
Cancellation of shares (in shares) |  | 3,699,999 |  |  |
Accrued interest satisfied by issuance of warrants |  |  | $ 125 |  |
Value of common stock issued in exchange for Patent Rights |  |  |  | $ 697 |
Right-of-use asset |  |  | 1,268 |  | $ 1,200
New Operating Lease [Member] |  |  |  |  |
Right-of-use asset |  |  | $ 100 |  |
Convertible Noteholders [Member] |  |  |  |  |
Warrants granted |  | 498,418 | 498,418 |  |
Accrued interest satisfied by issuance of warrants |  | $ 100 |  |  |
Common Shares [Member] |  |  |  |  |
Cancellation of shares (in shares) |  |  |  | 3,699,999 |
Number of common stock issued in exchange for Patent Rights |  |  |  | 3,866,810 |
Value of common stock issued in exchange for Patent Rights |  |  |  | $ 4 |
Common Shares [Member] | Patents [Member] |  |  |  |  |
Number of common stock issued in exchange for Patent Rights | 3,866,810 |  |  |  |
Value of common stock issued in exchange for Patent Rights | $ 700 |  |  |  |

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