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Consolidated statements of cash flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Cash flows from operating activities |  |
Net income (loss) | $ (18,876) | $ 3,712
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |
Depreciation expense | 10,799 | 12,441
Amortization of intangible assets | 23,929 | 24,537
Stock-based compensation expense | 4,571 | 4,205
Inventory write downs | 2,784 | 2,698
Provision for doubtful accounts | 1,527 | 2,249
Deferred income taxes | (204) | (130)
Loss (gain) on sale-leaseback transactions | 0 | (7,000)
Other | 5,116 | 5,350
Changes in operating assets and liabilities |  |
Accounts receivable—trade | 6,678 | (34,802)
Inventories | (31,928) | (34,611)
Prepaid expenses and other current assets | 2,686 | 590
Cost and estimated profits in excess of billings | 2,144 | (7,824)
Accounts payable, deferred revenue and other accrued liabilities | (4,894) | 20,764
Billings in excess of costs and profits recognized | 3,851 | (9,233)
Net cash provided by (used in) operating activities | 8,183 | (17,054)
Cash flows from investing activities |  |
Capital expenditures for property and equipment | (7,944) | (7,492)
Proceeds from sale of property and equipment | 1,371 | 3,007
Acquisition of businesses, net of cash acquired | 0 | (485)
Proceeds from sale-leaseback transactions | 0 | 32,109
Net cash provided by (used in) investing activities | (6,573) | 27,139
Cash flows from financing activities |  |
Borrowings on revolving Credit Facility | 451,738 | 544,126
Repayments on revolving Credit Facility | (451,738) | (544,126)
Repurchases of stock | (5,996) | (3,826)
Payment of capital lease obligations | (1,275) | (1,250)
Deferred financing costs | (311) | 0
Net cash used in financing activities | (7,582) | (5,076)
Effect of exchange rate changes on cash | 1,108 | (838)
Net increase (decrease) in cash, cash equivalents and restricted cash | (4,864) | 4,171
Cash, cash equivalents and restricted cash at beginning of period | 51,029 | 46,858
Cash, cash equivalents and restricted cash at end of period | 46,165 | 51,029
Supplemental cash flow disclosures |  |
Cash paid for interest | 17,088 | 25,325
Cash paid (refunded) for income taxes | 8,804 | (383)
Noncash investing and financing activities |  |
Operating lease assets obtained in exchange for lease obligations | 7,535 | 40,516
Finance lease assets obtained in exchange for lease obligations | 2,108 | 2,026
Accrued purchases of property and equipment | $ 6 | $ 50

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