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v3.25.3

Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Operating activities: |  |
Net loss | $ (12,501) | $ (21,026)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Bad debt expense | 71 | 61
Inventory reserve | 1,657 | 4,235
Depreciation and amortization | 4,761 | 4,933
Stock-based compensation | 2,652 | 2,900
Deferred taxes | 119 | (52)
Accrued interest income on short-term investments | (8) | (118)
Amortization of discount on short-term investments | (508) | 0
Amortization of debt financing costs | 173 | 291
Other adjustment to loan exit fee | (485) | 0
Non-cash lease expense | 92 | 140
Loss on disposal of property, plant, and equipment | 19 | 49
Changes in operating assets and liabilities: |  |
Accounts receivable | (894) | (718)
Inventories | (1,770) | (315)
Prepaid expenses and other current assets | (1,464) | (943)
Other non-current assets | 67 | 334
Accounts payable | 244 | (430)
Accrued liabilities | (399) | (724)
Other | (10) | (72)
Cash used in operating activities | (8,184) | (11,455)
Investing activities: |  |
Purchases of short-term investments | (13,708) | (25,428)
Maturities of short-term investments | 22,000 | 0
Proceeds from sale of property, plant, and equipment | 0 | 125
Purchases of property, plant, and equipment | (800) | (558)
Cash provided by (used in) investing activities | 7,492 | (25,861)
Financing activities: |  |
Proceeds from equity financing, net | 0 | 15,104
Proceeds from long-term debt | 1,110 | 0
Payment of exit fee costs | (1,110) | 0
Proceeds from financed insurance premiums | 333 | 385
Repayment of financed insurance premiums | (150) | (572)
Proceeds from exercise of stock options | 49 | 4
Proceeds from issuance of common stock under employee stock purchase plan | 56 | 81
Payment of debt issuance costs | (100) | (25)
Cash provided by financing activities | 188 | 14,977
Change in cash and cash equivalents | (504) | (22,339)
Cash and cash equivalents at beginning of period | 3,708 | 28,484
Cash and cash equivalents at end of period | 3,204 | 6,145
Supplemental cash flow disclosures: |  |
Income taxes paid | 44 | 41
Interest paid, net of amounts capitalized | 1,098 | 1,178
Offering costs included in accounts payable and accrued liabilities | 0 | 18
Capitalized property, plant, and equipment included in accounts payable and accrued liabilities | 93 | 90
Issuance of common stock warrants | 0 | 132
Recognition of operating right-of-use lease asset | 564 | 1,293
Recognition of operating lease liabilities | $ 564 | $ 1,306

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