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v3.25.0.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
OPERATING ACTIVITIES |  |
Net loss | $ (1,943) | $ (1,538)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities: |  |
Depreciation | 403 | 281
Amortization | 57 | 61
Loss on sale of equipment | 0 | 10
Non-cash interest income on held-to-maturity securities | (132) | (433)
Provision for credit losses, net of recoveries | (4) | 0
Deferred income taxes | 4 | (5)
Stock-based compensation, net of forfeitures | 446 | 389
Changes in operating assets and liabilities: |  |
Accounts receivable | (1,127) | 1,039
Employee retention credit receivable | (1,677) | 0
Inventories | 41 | (46)
Prepaid expenses, other current assets and other non-current assets | 292 | (6)
Accounts payable | 519 | (295)
Accrued liabilities and other non-current liabilities | (312) | 1,239
Net cash (used in) provided by operating activities | (3,433) | 696
INVESTING ACTIVITIES |  |
Purchases of equipment and patents | (378) | (418)
Purchases of debt securities | (18,060) | (14,026)
Maturities of debt securities | 12,995 | 8,000
Net cash used in investing activities | (5,443) | (6,444)
FINANCING ACTIVITIES |  |
Proceeds from exercise of stock options | 0 | 42
Taxes paid on behalf of equity award participants | (95) | 0
Net cash (used in) provided by financing activities | (95) | 42
Effect of exchange rate fluctuations on cash | (97) | (44)
Net decrease in cash and cash equivalents | (9,068) | (5,750)
Cash and cash equivalents at beginning of period | 17,578 | 23,328
Cash and cash equivalents at end of period | 8,510 | 17,578
Supplemental Cash Flow Information: |  |
Cash income taxes paid, net | 52 | 12
Non-cash transfer from other non-current assets to property and equipment | $ 597 | $ 0

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