CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 8,774	$ 8,330
Adjustments to reconcile net earnings to net cash used in operating activities:
Depreciation and amortization	4,953	4,605
(Gain) loss from equity method investment	122	(27)
Amortization of marketable security premiums	370	169
Changes in operating assets and liabilities:
Accounts receivable	4,955	1,807
Other receivables	764	1,761
Inventories	(175)	(14,356)
Prepaid expenses and other assets	503	1,723
Accounts payable and accrued liabilities	(2,621)	455
Income taxes payable and deferred	1,724	(1,997)
Postretirement health care and life insurance benefits	804	530
Deferred compensation and other liabilities	511	456
Other	703	268
Net cash from operating activities	21,387	3,724
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(3,250)	(3,382)
Net purchases of trading securities	(1,949)	(2,544)
Purchase of available for sale securities	(2,805)	(17,718)
Sale and maturity of available for sale securities	1,346	55
Net cash used in investing activities	(6,658)	(23,589)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares purchased and retired	(4,247)	(2,163)
Dividends paid in cash	(9,185)	(9,040)
Net cash used in financing activities	(13,432)	(11,203)
Increase(decrease) in cash and cash equivalents	1,297	(31,068)
Cash and cash equivalents at beginning of year	78,612	115,976
Cash and cash equivalents at end of quarter	79,909	84,908
Supplemental cash flow information:
Income taxes paid, net	1,657	1,302
Interest paid	14	25
Stock dividend issued	$ 38,237	$ 47,054