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Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Operating activities:    
Net loss $ (24,231) $ (26,410)
Adjustments to reconcile net loss to net cash used in operating activities:    
Share-based compensation 2,969 2,662
Depreciation 1,798 1,790
Debt related fees and amortization expense 1,421 1,969
Intangibles and other amortization expense 12 12
Accretion and other expenses of Series A preferred units 3,311 5,564
Deferred tax benefit 0 (262)
Changes in operating assets and liabilities:    
Accounts receivable (245) 1,005
Inventories 2,259 (7,942)
Prepaid expenses 929 2,315
Other assets (544) 460
Accounts payable (3,236) 3,002
Accrued interest expense and fees 5,500 5,356
Other liabilities (221) (779)
Net cash used in operating activities (10,278) (11,258)
Investing activities:    
Capital expenditures (3,583) (7,616)
Grant proceeds and other reimbursements received for capital expenditures 1,900 6,757
Net cash used in investing activities (1,683) (859)
Financing activities:    
Proceeds from borrowings 6,223 11,583
Repayments of borrowings (411) (2,724)
Lender debt renewal and waiver fee payments (750) 0
Payments on finance leases (8) (83)
Proceeds from sales of common stock 5,513 2,617
Proceeds from exercise of stock options 36 0
Net cash provided by financing activities 10,603 11,393
Effect of exchange rate changes on cash, cash equivalents, and restricted cash 15 (56)
Net change in cash, cash equivalents, and restricted cash for period (1,343) (780)
Cash, cash equivalents, and restricted cash at beginning of period 6,280 6,999
Cash, cash equivalents and restricted cash at end of period 4,937 6,219
Supplemental disclosures of cash flow information, cash paid:    
Cash paid for interest 2,963 1,515
Income taxes paid 878 14
Supplemental disclosures of cash flow information, non-cash transactions:    
Subordinated debt extension fees added to debt 340 340
Debt fees added to revolving lines 0 423
Fair value of warrants issued to subordinated debt holders 593 448
Lender debt extension, waiver, and other fees added to debt 595 384
Cumulative capital expenditures in accounts payable, including net increase (decrease) of $1,027 and ($511), respectively $ 8,927 $ 14,900