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v3.22.4

Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |  |
Net loss | $ (53,091) | $ (43,200) | $ (13,634)
Adjustments to reconcile net loss to net cash used in operations: |  |  |
Depreciation and amortization | 2,246 | 1,464 | 963
Impairment of property and equipment | 64 | 882 | 0
Gain on disposal of property and equipment | 0 | 0 | (450)
Share-based compensation expense | 15,461 | 15,284 | 1,297
Non-cash interest (income) expense | 0 | (10) | 11
Inventory write-downs | 87 | 48 | 168
Net accretion of premium on short-term investments | 21 | 86 | 0
Gain on debt extinguishment | 0 | (692) | 0
Change in: |  |  |
Accounts receivable | 0 | 0 | 1,079
Inventory | (168) | (1,828) | 24
Other current and non-current assets | (217) | (2,552) | 154
Accounts payable | (1,737) | 2,520 | (1,387)
Accrued liabilities | 888 | 675 | (1,550)
Deferred revenue | 0 | 0 | (21)
Contract liabilities and other current liabilities | (293) | (1,319) | (2,073)
Operating lease liabilities | (1,280) | (762) | (656)
Net cash used in operating activities | (38,019) | (29,404) | (16,075)
Cash flows from investing activities |  |  |
Sales of investment securities | 60,576 | 0 | 0
Purchases of investment securities | (90,158) | (32,825) | 0
Advance to IBEO | (4,132) | 0 | 0
Proceeds from Sale of Property, Plant, and Equipment | 0 | 0 | 525
Purchases of property and equipment | (4,359) | (2,493) | (402)
Net cash provided by (used in) investing activities | (38,073) | (35,318) | 123
Net Cash Provided by (Used in) Financing Activities [Abstract] |  |  |
Principal payments under finance leases | (26) | (28) | (29)
Proceeds from long-term debt | 0 | 0 | 1,571
Principal payments under long-term debt | (392) | (488) | 0
Payments received on subscriptions receivable | 0 | 6,135 | 0
Proceeds from stock option exercises | 726 | 2,654 | 1,000
Net proceeds from issuance of common stock | 13,999 | 122,891 | 24,435
Net cash provided by financing activities | 14,307 | 131,164 | 26,977
Change in cash, cash equivalents, and restricted cash | (61,785) | 66,442 | 11,025
Cash, cash equivalents, and restricted cash at beginning of period | 83,739 | 17,297 | 6,272
Cash, cash equivalents, and restricted cash at end of period | 21,954 | 83,739 | 17,297
Supplemental schedule of non-cash investing and financing activities |  |  |
Issuance of common stock for subscriptions receivable | 0 | 0 | 6,135
Property and equipment acquired under finance leases | 0 | 0 | 70
Lease liabilities from obtaining right-of-use operating asset | 10,184 | 5,097 | 0
Non-cash additions to property and equipment | $ 764 | $ 550 | $ 116

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