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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |  |
Net income (loss) | $ (58,990) | $ (57,429) | $ 36,262
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 13,437 | 11,021 | 10,838
Allowance for expected credit losses | 245 | 697 | 1,718
Recovery of related party receivable |  | (50) | (335)
Provision for obsolete and excess inventory | 3,400 | 9,537 | 8,274
Stock-based compensation | 33,660 | 33,939 | 6,285
Impairment of equity method investment |  | 2,281 |
Loss from equity method investment |  |  | 7,374
Gain from sales of investment | (6,835) | (1,669) |
Change in fair value of warrant liabilities | (11) | (1,063) | (61)
Loss on disposal of property and equipment | 180 | 431 | 83
Gain from disposal of subsidiary |  |  | (2,043)
Unrealized loss on marketable securities | 4 | 55 | 101
Deferred income taxes | (679) | 12,499 | (12,698)
Changes in operating assets and liabilities: |  |  |
Accounts receivable | 2,758 | (21,969) | 788
Inventories | 16,781 | 78,766 | (70,830)
Prepaid expenses | 3,583 | 905 | (2,152)
Other assets | 7,086 | 9,982 | (50,919)
Accounts payable | (898) | (14,063) | (20,072)
Accrued liabilities and other liabilities | (12,063) | (34,449) | 41,547
Deferred revenue | (5,497) | (8,941) | (7,443)
Dues from affiliate |  |  | (3)
Net cash provided by (used in) operating activities | (3,839) | 20,480 | (53,286)
Cash flows from investing activities: |  |  |
Payments to acquire property and equipment | (30,265) | (9,190) | (13,839)
Proceeds on disposal of property and equipment | 176 | 1 | 1
Proceeds from sale of investment | 15,835 | 5,419 |
Net cash used in investing activities | (14,254) | (3,770) | (13,838)
Cash flows from financing activities: |  |  |
Borrowings under line of credit | 66,502 | 46,188 | 787
Repayments under line of credit | (65,098) | (45,742) |
Repayments of long-term debt | (264) | (274) | (285)
Cash received from common control asset transaction |  |  | 11,426
Proceeds from exercise of warrants |  |  | 538
Proceeds from exercise of stock options | 1,194 | 2,890 | 270
Payments for employee taxes related to stock compensation | (774) | (1,514) |
Net cash provided by financing activities | 1,560 | 1,548 | 12,736
Foreign currency effect on cash, cash equivalents and restricted cash | (499) | 918 | 972
Net increase (decrease) in cash, cash equivalents and restricted cash | (17,032) | 19,176 | (53,416)
Cash, cash equivalents and restricted cash: |  |  |
Beginning of period | 123,506 | 104,330 | 157,746
End of period | 106,474 | 123,506 | 104,330
Supplemental disclosures of cash flow information: |  |  |
Cash paid for interest | 1,265 | 558 | 268
Cash paid for income taxes | 342 | 4,963 | 6,374
Supplemental schedule of noncash investing activities |  |  |
Cashless exercise of stock options |  | 723 | 677
ROU assets exchanged for lease liabilities | $ 18,861 | $ 7,517 | $ 60,672

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