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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net income | $ 3,954 | $ 6,875
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation | 8,715 | 8,961
Amortization of intangibles | 543 | 543
Loss on disposal of property and equipment | 8 | 7
Stock-based compensation expense | 6,414 | 7,368
Amortization of premium (accretion of discount) on marketable securities | (496) | 404
Deferred income taxes | (1,330) | (738)
Increase (decrease) in accounts receivable allowance for credit losses | 163 | (454)
Change in operating assets and liabilities: |  |
Accounts receivable | 2,232 | 705
Inventories | (4,701) | (7,024)
Prepaid expenses and other assets | 846 | (2,302)
Accounts payable | 1,294 | 2,926
Taxes payable and accrued liabilities | (1,737) | (686)
Net cash provided by operating activities | 15,905 | 16,585
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchases of property and equipment | (4,343) | (4,082)
Purchases of marketable securities | (49,912) | (36,922)
Proceeds from sales and maturities of marketable securities | 54,198 | 22,693
Net cash used in investing activities | (57) | (18,311)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Issuance of common stock under employee stock plans | 2,691 | 3,098
Repurchase of common stock | (14,641) | (1,687)
Payments of dividends to stockholders | (11,384) | (10,868)
Net cash used in financing activities | (23,334) | (9,457)
NET DECREASE IN CASH AND CASH EQUIVALENTS | (7,486) | (11,183)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 63,929 | 105,372
CASH AND CASH EQUIVALENTS AT END OF PERIOD | 56,443 | 94,189
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES: |  |
Unpaid property and equipment | 2,424 | 2,762
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: |  |
Cash paid for income taxes, net | $ 410 | $ 3,665

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