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LICENSE AGREEMENTS (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 15 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 31, 2020 USD ($) | Jul. 31, 2019 USD ($) | Apr. 30, 2018 USD ($) | May 31, 2016 USD ($) | Dec. 31, 2012 USD ($) | Sep. 30, 2021 USD ($) item | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) item | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) item | Dec. 31, 2020 USD ($) | Nov. 30, 2012 USD ($)
Revenue |  |  |  |  |  | $ 2,030,000 | $ 38,000 | $ 4,368,000 | $ 114,000 |  |  |
Eligible payments to be received |  |  |  |  |  | 47,433,000 | 45,846,000 | 140,872,000 | 114,785,000 |  |  |
TG-1101 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Upfront fee |  |  |  | $ 5,000,000.0 | $ 2,000,000.0 |  |  |  |  |  |  |
Income taxes |  |  |  |  | $ 300,000 |  |  |  |  |  |  |
Revenue |  |  |  |  |  | 38,000 | 38,000 | 114,000 | 114,000 |  |  |
Term after first commercial sale |  |  |  |  | 15 years |  |  |  |  |  |  |
Deferred Revenue |  |  |  |  |  | 600,000 |  | 600,000 |  | $ 600,000 | $ 800,000 |
Deferred Revenue, Current |  |  |  |  |  | 200,000 |  | 200,000 |  | 200,000 |  |
TG-1701 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Upfront fee |  | $ 100,000 | $ 1,000,000.0 |  |  |  |  | 350,000,000 |  |  |  |
Milestone payment made | $ 2,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Expenses incurred |  |  |  |  |  | 4,200,000 | $ 300,000 | 9,000,000.0 | 600,000 |  |  |
TG-1801 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Upfront fee |  |  |  |  |  |  |  | 3,000,000.0 |  |  |  |
Additional payments on achievement of certain milestones |  |  |  |  |  |  |  |  |  |  |  | $ 185,000,000
Expenses incurred |  |  |  |  |  |  |  | 2,000,000.0 |  |  |  |
TGR-1202 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Additional payments on achievement of certain milestones |  |  |  |  |  | $ 175,000,000 |  | 175,000,000 |  | $ 175,000,000 |  |
Milestone payment made |  |  |  |  |  |  |  | $ 12,000,000.0 |  |  |  |
Number of oncology indications | item |  |  |  |  |  | 2 |  | 2 |  | 2 |  |
Number of non oncology indications | item |  |  |  |  |  | 1 |  | 1 |  | 1 |  |
Royalty Expense |  |  |  |  |  | $ 100,000 |  | $ 300,000 |  |  |  |
Expenses incurred |  |  |  |  |  | $ 100,000 |  |  |  |  |  |
TG 1501 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Expenses incurred |  |  |  |  |  |  |  | 0 | $ 900,000 | $ 0 |  |
LFB Group [Member] | LFB License Agreement |  |  |  |  |  |  |  |  |  |  |  |
Eligible payments to be received |  |  |  |  |  |  |  | $ 31,000,000.0 |  |  |  |
Operating lease initial commitment period |  |  |  |  |  |  |  | 15 years |  |  |  |
Expenses incurred |  |  |  |  |  |  |  | $ 10,000,000.0 |  |  |  |

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