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DEBT & LIQUIDITY - Narrative (Details) - USD ($) |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 03, 2025 | Jun. 12, 2025 | Apr. 01, 2023 | Mar. 06, 2023 | Mar. 05, 2023 | Dec. 04, 2020 | Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2025 | Dec. 31, 2024 | Nov. 21, 2024 | Sep. 30, 2024
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from long-term lines of credit |  |  |  |  |  |  | $ 1,297,000 | $ 5,128,000 | $ 21,968,000 | $ 34,421,000 |  |
Principal repayment on term loan |  |  |  |  |  |  |  |  | 35,070,000 | 0 |  |
Number of shares called by warrants (in shares) | 646,264 |  |  | 1 |  |  |  |  |  |  |  |
Exercise price (in dollars per share) | $ 0.01 |  |  | $ 287.5 |  |  |  |  |  |  |  |
Derivative liability |  | $ 3,600,000 |  |  |  |  |  |  |  |  |  |
Change in fair value of derivative liability, warrants, and other |  |  |  |  |  |  | $ (4,316,000) | 36,000 | (17,432,000) | (17,000) |  |
Gain on extinguishment of term loan and settlement of derivative liability, net |  | $ (1,000,000) |  |  |  |  |  |  | 5,120,000 | 0 |  |
Net proceeds on the initial issuance date |  |  |  |  |  |  |  |  | 63,900,000 |  |  |
Net proceeds from the issuance | $ 63,900,000 |  |  |  |  |  |  |  |  |  |  |
Derecognition of the related derivative liability | $ 6,200,000 |  |  |  |  |  |  |  |  |  |  |
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration] | Gain on extinguishment of term loan and settlement of derivative liability, net |  |  |  |  |  |  |  |  |  |  |
Hawthorn Warrants |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Reacquired warrants based on their relative fair value | $ 6,200,000 |  |  |  |  |  |  |  |  |  |  |
Net proceeds on the initial issuance date |  |  |  |  |  |  |  |  | 5,000,000 |  |  |
Senior Secured Term Loan Facility Commitment | Line of Credit | Term Loan Warrants Issued March 2023 |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares called by warrants (in shares) |  |  |  | 160,000 |  |  |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  | $ 0.25 |  |  |  |  |  |  |  |
Senior Secured Term Loan Facility Commitment | Line of Credit | Term Loan Warrants Issued June 2025 |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares called by warrants (in shares) |  | 486,264 |  |  |  |  |  |  |  |  |  |
Exercise price (in dollars per share) |  | $ 0.01 |  |  |  |  |  |  |  |  |  |
Senior Secured Term Loan Facility Commitment | Senior Loans | Term Loan Warrants Issued June 2025 |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Change in fair value of derivative liability, warrants, and other |  | $ 3,900,000 |  |  |  |  |  |  |  |  |  |
New Revolving Facility |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit, principal amount |  |  |  |  |  |  |  |  | $ 78,700,000 | $ 82,800,000 |  |
New Revolving Facility | First Revolving Line Of Credit | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit, principal amount |  |  |  | $ 75,000,000 | $ 125,000,000 |  |  |  |  |  | $ 90,000,000 | $ 250,000,000
Basis spread on variable rate |  |  |  | 8.50% | 7.50% |  |  |  |  |  |  |
Annual interest rate |  |  |  |  |  |  |  |  | 11.50% | 13.10% |  |
Uncommitted amount |  |  |  |  |  |  |  |  |  |  | $ 10,000,000 |
Issuance costs |  |  |  |  |  |  |  |  |  | $ 176,000 |  |
Amortization expense |  |  |  |  |  |  |  |  | $ 2,400,000 | 300,000 |  |
New Revolving Facility | First Revolving Line Of Credit | Line of Credit | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 3.00% |  |  |  |  |  |  |  |  |
New Revolving Facility | New Revolving Facility | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit, principal amount |  | $ 110,000,000 |  |  |  |  |  |  |  |  |  |
Floor rate on variable rate |  | 3.00% |  |  |  |  |  |  |  |  |  |
Annual interest rate |  |  |  |  |  |  | 11.30% |  | 11.50% |  |  |
Incremental borrowing advance |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |
Issuance costs |  |  |  |  |  |  |  |  | $ 0 |  |  |
Amortization expense |  |  |  |  |  |  | $ 1,000,000 | $ 100,000 | 2,400,000 | $ 300,000 |  |
New Revolving Facility | New Revolving Facility | Line of Credit | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.10% |  |  |  |  |  |  |  |  |  |
New Revolving Facility | New Revolving Facility | Line of Credit | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 7.00% |  |  |  |  |  |  |  |  |  |
New Term Loan | New Revolving Facility | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual interest rate |  | 18.00% |  |  |  |  |  |  |  |  |  |
Incremental borrowing advance |  | $ 32,700,000 |  |  |  |  |  |  |  |  |  |
Net origination period |  | 3 months |  |  |  |  |  |  |  |  |  |
Convertible debt, shares issuable (in shares) |  | 21,413,548 |  |  |  |  |  |  |  |  |  |
Issuance costs |  |  |  |  |  |  | $ 2,800,000 |  | 3,800,000 |  |  |
New Term Loan | The Credit Facility | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit, principal amount |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |
Proceeds from long-term lines of credit |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  | 8.00% |  |  |  |  |  |
Floor rate on variable rate |  |  |  |  |  | 1.00% |  |  |  |  |  |
Paid-in-kind interest rate if liquidity is less than $50000 |  |  |  |  |  | 3.00% |  |  |  |  |  |
Annual interest rate |  |  |  |  |  |  |  |  |  | 18.60% |  |
Debt, principal amount |  |  |  |  |  |  |  |  |  | $ 25,000,000 |  |
New Term Loan | Senior Secured Term Loan Facility Commitment | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 0.10% | 8.00% |  |  |  |  |  |  |  |
Paid-in-kind interest rate if liquidity is less than $50000 |  |  |  | 6.00% |  |  |  |  |  |  |  |
Paid-in-kind interest rate |  |  |  | 4.50% |  |  |  |  |  |  |  |
Paid-in-kind interest liquidity trigger amount |  |  |  | $ 25,000,000 |  |  |  |  |  |  |  |
Principal repayment on term loan |  |  |  | $ 25,000,000 |  |  |  |  |  |  |  |
Debt, principal amount |  |  |  |  |  |  |  |  |  | 25,000,000 |  |
Amortization expense |  |  |  |  |  |  |  |  | $ 3,000,000 | $ 3,100,000 |  |
New Term Loan | Senior Secured Term Loan Facility Commitment | Line of Credit | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 3.00% |  |  |  |  |  |  |  |  |

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