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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net earnings | $ 75,892 | $ 65,308 | $ 58,974
Adjustments to reconcile net earnings to net cash provided by operating activities: |  |  |
Depreciation | 17,668 | 17,570 | 18,184
Deferred income taxes | 1,535 | (1,263) | (279)
Amortization of marketable security premiums | 5,531 | 3,837 | 1,404
Changes in operating assets and liabilities: |  |  |
Accounts receivable | (3,073) | (14,130) | 3,483
Other receivables | (1,020) | (706) | 636
Inventories | (28,415) | 3,940 | (770)
Prepaid expenses and other assets | 49 | 2,622 | 2,961
Accounts payable and accrued liabilities | 10,329 | 10,010 | 3,849
Income taxes payable | (4,565) | (1,296) | 3,012
Postretirement health care benefits | (804) | (1,281) | (1,041)
Deferred compensation and other liabilities | (1,076) | 687 | (15,703)
Net cash provided by operating activities | 72,051 | 85,298 | 74,710
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Capital expenditures | (23,356) | (31,426) | (17,970)
Repayment of premiums on split dollar life insurance policies |  | 2,514 | 23,527
Purchases of trading securities | (1,543) | (2,668) | (3,183)
Sales of trading securities | 2,806 | 968 | 18,058
Purchase of available for sale securities | (96,114) | (108,576) | (109,816)
Sale and maturity of available for sale securities | 49,618 | 47,289 | 98,885
Net cash (used in) provided by investing activities | (68,589) | (91,899) | 9,501
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Shares purchased and retired | (31,910) | (30,184) | (32,055)
Dividends paid in cash | (24,629) | (24,136) | (23,810)
Proceeds from bank loans | 3,989 | 3,792 | 3,902
Repayment of bank loans | (3,850) | (3,618) | (3,883)
Net cash used in financing activities | (56,400) | (54,146) | (55,846)
Effect of exchange rate changes on cash | 347 | (283) | (449)
Increase (decrease) in cash and cash equivalents | (52,591) | (61,030) | 27,916
Cash, cash equivalents and restricted cash at beginning of year | 106,226 | 167,256 | 139,340
Cash, cash equivalents and restricted cash at end of year | 53,635 | 106,226 | 167,256
Supplemental cash flow information: |  |  |
Income taxes paid | 23,884 | 22,855 | 14,503
Interest paid | 78 | 6 | 57
Stock dividend issued | $ 70,242 | $ 64,667 | $ 63,402

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