CONSOLIDATED STATEMENTS OF Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 20,930	$ 20,323
Adjustments to reconcile net earnings to net cash used in operating activities:
Depreciation and amortization	10,069	10,178
Deferred income taxes	675	67
Amortization of marketable security premiums	1,503	1,531
Changes in operating assets and liabilities:
Accounts receivable	21,748	15,112
Other receivables	1,877	(65)
Inventories	(31,639)	(31,950)
Prepaid expenses and other assets	1,823	4,543
Accounts payable and accrued liabilities	(142)	3,306
Income taxes payable	(6,102)	(1,462)
Postretirement health care benefits	(615)	(390)
Deferred compensation and other liabilities	1,521	1,260
Net cash from operating activities	21,648	22,453
CASH FLOWS FROM INVESTING ACTIVITIES:
Restricted cash	(2)	235
Capital expenditures	(10,389)	(6,805)
Purchases of trading securities	(2,774)	(2,978)
Sales of trading securities	613	616
Purchase of available for sale securities	(34,826)	(17,204)
Sale and maturity of available for sale securities	12,777	13,531
Net cash used in investing activities	(34,601)	(12,605)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares purchased and retired	(9,166)	(11,991)
Dividends paid in cash	(11,077)	(9,736)
Proceeds from bank loans	1,762
Repayment of bank loans	(1,764)	(158)
Net cash used in financing activities	(20,245)	(21,885)
Effect of exchange rate changes on cash	(997)	(1,066)
Decrease in cash and cash equivalents	(34,195)	(13,103)
Cash and cash equivalents at beginning of year	126,145	100,108
Cash and cash equivalents at end of year	91,950	87,005
Supplemental cash flow information:
Income taxes paid, net	15,390	9,421
Interest paid	9	12
Stock dividend issued	$ 61,671	$ 57,220