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v3.22.1

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Operating activities |  |
Net loss | $ (12,284) | $ (17,457)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 865 | 794
Stock-based compensation | 6,426 | 5,333
Non-cash operating lease cost | 396 | 321
Changes in valuation of warrant investment | 281 | (220)
Net loss on sale of available-for-sale securities | 26 |
Unrealized gain on investments | (820) | (208)
Impairment of long-lived assets | 542 |
Non-cash interest expense | 464 | 104
Foreign currency remeasurement loss | 287 | 206
Changes in operating assets and liabilities: |  |
Accounts receivable | (564) | 2,465
Inventories | (834) | (1,036)
Other assets | (4,111) | (2,693)
Accounts payable | (4,121) | (833)
Accrued liabilities and other non-current liabilities | (8,594) | (4,710)
Deferred product revenue | 585 | 479
Net cash used in operating activities | (21,456) | (17,455)
Investing activities |  |
Capital expenditures | (113) | (193)
Purchases of investments | (642) | (1,915)
Proceeds from maturities and sale of investments | 9,377 | 23,500
Net cash provided by investing activities | 8,622 | 21,392
Financing activities |  |
Net proceeds from equity incentives | 2,135 | 1,066
Net proceeds on revolving line of credit | 314 | 1,422
Proceeds from loans |  | 15,000
Net cash provided by financing activities | 2,449 | 17,488
Effect of exchange rates on cash, cash equivalents, and restricted cash | (284) | (521)
Net (decrease) increase in cash, cash equivalents and restricted cash | (10,669) | 20,904
Cash, cash equivalents and restricted cash, beginning of period | 51,044 | 38,903
Cash, cash equivalents and restricted cash, end of period | $ 40,375 | $ 59,807

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