CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 28,114	$ 24,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	9,205	8,451
Deferred income taxes	313	(233)
Amortization of marketable security premiums	2,325	2,792
Changes in operating assets and liabilities:
Accounts receivable	9,601	10,165
Other receivables	(3,338)	(745)
Inventories	(54,304)	(45,483)
Prepaid expenses and other assets	3,233	2,206
Accounts payable and accrued liabilities	353	3,214
Income taxes payable	(769)	(3,813)
Postretirement health care benefits	(378)	(431)
Deferred compensation and other liabilities	503	494
Net cash (used in) provided by operating activities	(5,142)	617
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(10,723)	(10,194)
Purchases of trading securities	(1,358)	(1,112)
Sales of trading securities	528	205
Purchase of available for sale securities	(48,522)	(57,731)
Sale and maturity of available for sale securities	66,507	25,993
Net cash provided by (used in) investing activities	6,432	(42,839)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares purchased and retired	(16,548)	(5,023)
Dividends paid in cash	(12,531)	(12,237)
Proceeds from bank loans	1,997	2,182
Repayment of bank loans	(2,013)	(2,018)
Net cash used in financing activities	(29,095)	(17,096)
Effect of exchange rate changes on cash	588	75
Decrease in cash and cash equivalents	(27,217)	(59,243)
Cash, cash equivalents and restricted cash at beginning of year	53,635	106,226
Cash, cash equivalents and restricted cash at end of quarter	26,418	46,983
Supplemental cash flow information:
Income taxes paid/(received), net	9,521	11,415
Interest paid	120	13
Stock dividend issued	$ 86,433	$ 70,242