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STOCKHOLDERS' EQUITY (Details) $ / shares in Units, $ in Millions |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
May 12, 2025 USD ($) d $ / shares shares | Apr. 08, 2024 shares | Mar. 26, 2024 $ / shares shares | Mar. 21, 2024 USD ($) | Jul. 31, 2025 shares | Jun. 30, 2025 shares | Sep. 30, 2025 USD ($) $ / shares shares | Sep. 30, 2024 $ / shares shares | Sep. 30, 2025 USD ($) $ / shares shares | Sep. 30, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Consideration received on transaction | $ | $ 21.1 |  |  | $ 21.9 |  |  |  |  |  |
Offering price of each common stock (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.75 |  | $ 0.75 |
Net of placement fees | $ | 1.4 |  |  | 1.4 |  |  |  |  |  |
Proceeds from other offering expenses | $ | $ 0.5 |  |  | $ 0.7 |  |  |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  |  |  |  |  | 24,761,905
Issuance of common stock upon exercise of pre-funded warrants (in shares) |  | 3,800,000 |  |  | 12,000,000.0 | 22,400,000 | 12,000,000 |  | 34,398,393 | 3,809,523
Common warrants |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of warrants exercised (in shares) |  |  |  |  |  |  |  |  | 0 |
Pre-funded warrants |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of new stock issued during the period (in shares) |  |  |  |  |  |  | 34,400,000 | 3,800,000 | 34,400,000 | 3,800,000
Offering price of each common stock (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 1.00 |  | $ 1.00
Warrants outstanding (in shares) |  |  |  |  |  |  | 0 |  | 0 |
Number of warrants exercised (in shares) |  |  |  |  | 12,000,000.0 | 22,400,000 |  |  |  |
Stock price (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01
Direct offering |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) | 12,200,000 |  | 24,800,000 |  |  |  |  |  |  |
Cash placement fees (as a percent) |  |  |  | 6.00% |  |  |  |  |  |
Direct offering | Common Stock |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction, per unit (in shares) | 1 |  |  |  |  |  |  |  |  |
Direct offering | Common Stock And Common Warrant Unit |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Sale of stock, price per share (in dollars per share) | $ / shares | $ 0.50 |  |  |  |  |  |  |  |  |
Direct offering | Pre-Funded Warrant And Common Warrant Unit |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Sale of stock, price per share (in dollars per share) | $ / shares | $ 0.49 |  |  |  |  |  |  |  |  |
Direct offering | Common warrants |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of new stock issued during the period (in shares) | 46,600,000 |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction, per unit (in shares) |  |  | 1 |  |  |  |  |  |  |
Number of shares of common stock for each Common warrant (in shares) | 1 |  | 1 |  |  |  |  |  |  |
Sale of stock, price per share (in dollars per share) | $ / shares |  |  | $ 0.84 |  |  |  |  |  |  |
Offering price of each common stock (in dollars per share) | $ / shares | $ 0.75 |  |  |  |  |  |  |  |  |
Term of warrants | 5 years 6 months |  | 5 years 6 months |  |  |  |  |  |  |
Warrants exercisable, period after issuance (in months) | 6 months |  | 6 months |  |  |  |  |  |  |
Number of consecutive trading days where the weighted average stock price exceeds threshold | d | 10 |  |  |  |  |  |  |  |  |
Stock price weighted average threshold (in dollars per share) | $ / shares | $ 2.75 |  |  |  |  |  |  |  |  |
Direct offering | Pre-funded warrants |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  | 28,600,000 |  |  |  |  |  |  |
Number of new stock issued during the period (in shares) | 34,400,000 |  | 3,800,000 |  |  |  |  |  |  |
Number of shares of common stock for each Common warrant (in shares) |  |  | 1 |  |  |  |  |  |  |
Sale of stock, price per share (in dollars per share) | $ / shares |  |  | $ 0.83 |  |  |  |  |  |  |
Offering price of each common stock (in dollars per share) | $ / shares | $ 0.01 |  | 1.00 |  |  |  |  |  |  |
Stock price (in dollars per share) | $ / shares |  |  | $ 0.01 |  |  |  |  |  |  |
Jefferies LLC | At-The-Market Offering Program |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Stock offering program, maximum value | $ |  |  |  |  |  |  |  |  | $ 325.0 |
Stock offering program, remaining available amount | $ |  |  |  |  |  |  | $ 148.7 |  | $ 148.7 |
Issuance of common stock (in shares) |  |  |  |  |  |  | 36,400,000 | 0 | 57,200,000 | 0
Consideration received on transaction | $ |  |  |  |  |  |  | $ 19.6 |  | $ 37.2 |

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