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v3.21.1

SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 17, 2021 | Feb. 10, 2021 | Mar. 30, 2021 | Dec. 31, 2020
Subsequent Event [Line Items] |  |  |  |
Gross proceeds |  |  |  | $ 4,867
Subsequent Event [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of shares issued (in shares) | 8,749,999 |  | 1,867,552 |
Gross proceeds | $ 40,200 |  | $ 8,800 |
Share price | $ 4.60 |  |  |
Subsequent Event [Member] | PRX-110 [Member] | SarcoMed [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Initial cash payment |  | $ 3,500 |  |
Term To Sign Supply Agreement |  | 60 days |  |
Subsequent Event [Member] | Over-Allotment Option [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of shares issued (in shares) | 1,141,304 |  |  |

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