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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Operating Activities:    
Net loss $ (6,545) $ (6,717)
Reconciliation of net loss to cash used in operations:    
Non-cash lease expense 65 59
Depreciation and amortization 306 124
Write-down of raw material inventory 0 694
Stock compensation expense 932 473
Effect of changes in operating working capital items:    
(Increase) decrease in other long-term assets (270) 2,934
Increase in prepaids and other current assets (29) (3,037)
Increase in payables and accrued liabilities 868 289
Net Cash Used In Operating Activities (4,673) (5,181)
Investing Activities:    
Capital expenditures (5,057) (3,972)
Proceeds from sale of assets 257 750
Net Cash Used In Investing Activities (4,800) (3,222)
Financing Activities:    
Proceeds from Series A-1 Convertible Notes 5,000  
Payments on Series A-1 Convertible Notes issuance costs (230)  
Payment of debt issuance costs (123)  
Issuance of Common Stock, net of issuance costs 7,612 814
Payment of minimum withholding taxes on net share settlements of equity awards (351) (96)
Payments on finance lease liabilities (3) (3)
Net Cash Provided By Financing Activities 11,905 715
Net increase (decrease) in Cash and Cash Equivalents 2,432 (7,688)
Cash and Cash Equivalents, Beginning of Period 4,272 10,852
Cash and Cash Equivalents, End of Period 6,704 3,164
Supplemental Cash Flow Information    
Accrued capital expenditures (at end of period) 3,242 4,996
Accrued debt issuance costs (at end of period) 1,629  
Total Supplemental Cash Flow Information $ 4,871 $ 4,996