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CAPITAL STOCK (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 4 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 22, 2025 | Mar. 19, 2025 | Apr. 07, 2022 | Dec. 31, 2024 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Jul. 23, 2025 | Jul. 21, 2025 | Feb. 28, 2025 | Sep. 09, 2024 | Jan. 29, 2024
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock, authorized (in shares) |  |  |  | 350,000,000 | 350,000,000 | 350,000,000 |  |  |  |  |  |
Common stock, par value (in dollars per share) |  |  |  | $ 0.00001 | $ 0.00001 | $ 0.00001 |  |  |  |  |  |
Common stock, outstanding (in shares) |  |  |  | 224,848,992 | 265,424,818 | 224,848,992 |  |  |  |  |  |
Common stock, issued (in shares) |  |  |  | 224,848,992 | 265,424,818 | 224,848,992 |  |  |  |  |  |
Preferred stock, authorized (in shares) |  |  |  | 25,000,000 | 25,000,000 | 25,000,000 |  |  |  |  |  |
Preferred stock, par value (in dollars per share) |  |  |  | $ 0.00001 | $ 0.00001 | $ 0.00001 |  |  |  |  |  |
Preferred stock, outstanding (in shares) |  |  |  | 0 | 0 | 0 |  |  |  |  |  |
Preferred stock, shares issued |  |  |  | 0 | 0 | 0 |  |  |  |  |  |
Issuance and sale of equity securities |  |  |  |  |  |  |  |  |  |  | $ 75.0 |
Warrant to purchase common stock (in shares) |  |  |  |  |  |  |  | 1,408,588 | 2,115,384 | 1,153,846 |  | 3,076,923
Exercise price (in dollars per share) |  |  |  |  |  |  |  |  | $ 1.30 | $ 1.30 |  | $ 1.30
Warrant exercise period (in years) |  |  |  |  |  |  |  |  |  | 8 years |  |
Warrant purchased (in shares) |  |  |  |  |  |  |  |  | 2,115,384 |  |  |
Warrants issued (in shares) |  |  |  |  |  |  |  |  | 1,408,588 |  |  |
Vifor (International) Ltd. | License |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Unregistered stock held by customer (in shares) |  |  |  |  | 7,571,429 |  |  |  |  |  |  |
At-The-Market Sale Agreement, Authorized April 2022 |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold in offering (in shares) |  |  |  |  |  | 13,261,311 | 6,189,974 |  |  |  |  |
Sale of stock, consideration received, gross |  |  |  |  |  | $ 19.2 | $ 6.8 |  |  |  |  |
Aggregate net proceeds from offering |  |  |  |  |  | $ 18.7 | $ 6.7 |  |  |  |  |
At-The-Market Sale Agreement, Authorized April 2022, Amended |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold in offering (in shares) |  |  |  | 14,271,631 | 9,437,364 |  |  |  |  |  |  |
Sale of stock, consideration received, gross |  |  |  | $ 24.3 | $ 18.7 |  |  |  |  |  |  |
Aggregate net proceeds from offering |  |  |  | $ 23.8 | $ 18.4 |  |  |  |  |  |  |
Public Stock Offering |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold in offering (in shares) |  | 25,000,000 |  |  |  |  |  |  |  |  |  |
Aggregate net proceeds from offering | $ 1.6 | $ 46.5 |  |  |  |  |  |  |  |  |  |
Sale of stock, price per share (in dollars per share) |  | $ 2.00 |  |  |  |  |  |  |  |  |  |
Public Stock Offering - Underwriting Agreement |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock, price per share (in dollars per share) |  | $ 1.88 |  |  |  |  |  |  |  |  |  |
Over-Allotment Option |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold in offering (in shares) | 850,000 | 3,750,000 |  |  |  |  |  |  |  |  |  |
Underwriters allotment option, term (in days) |  | 30 days |  |  |  |  |  |  |  |  |  |
Maximum | At-The-Market Sale Agreement, Authorized April 2022 |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock sales agreement amount |  |  | $ 26.0 |  |  |  |  |  |  |  |  |

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