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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 28, 2024 | Jun. 30, 2023
Cash flows from operating activities: |  |
Net income | $ 4,040 | $ 8,774
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |
Depreciation of property, plant, and equipment | 2,759 | 2,398
Amortization of intangibles |  | 171
Accretion/Amortization of investments available for sale | (286) | (1,824)
Deferred income taxes | 60 | 75
Change in net pension liability | (146) | (627)
Loss on disposal of property and equipment | 26 | 24
Stock-based compensation expense | 15,381 | 14,488
Change in asset retirement obligation | 20 | (107)
Provision for sales returns and bad debts | 1,079 | 1,004
Inventory provision | 1,024 | 3,630
Changes in working capital: |  |
Accounts receivable | 436 | (32,344)
Inventories | (4,871) | (4,382)
Prepayments, deposits, and other assets | (7,085) | (2,665)
Accounts payable | 3,618 | (1,447)
Other current liabilities | (4,788) | 1,432
Net cash provided by (used in) operating activities | 11,267 | (11,400)
Cash flows from investing activities: |  |
Acquisition of property and equipment | (11,438) | (5,915)
Purchase of investments available for sale | (20,249) | (42,602)
Proceeds from sale or maturity of investments available for sale | 27,206 | 68,622
Net cash provided by (used in) investing activities | (4,481) | 20,105
Cash flows from financing activities: |  |
Repayment of finance lease obligations | (82) | (82)
Repurchase of employee common stock for taxes withheld | (1,396) | (1,984)
Proceeds from the exercise of stock options | 5,695 | 2,006
Proceeds from vested restricted and performance stock units | 2 | 1
Net cash provided by (used in) financing activities | 4,219 | (59)
Effect of exchange rate changes on cash and cash equivalents | (1,267) | (431)
Increase in cash and cash equivalents | 9,738 | 8,215
Cash and cash equivalents, at beginning of the period | 183,038 | 86,480
Cash and cash equivalents, at end of the period | $ 192,776 | $ 94,695

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