CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 16,285	$ 14,816
Adjustments to reconcile net earnings to net cash from (used in) operating activities:
Depreciation and amortization	9,844	9,255
(Gain) loss from equity method investment	589	(133)
Amortization of marketable security premiums	765	513
Changes in operating assets and liabilities:
Accounts receivable	15,954	10,765
Other receivables	(738)	710
Inventories	(24,114)	(48,340)
Prepaid expenses and other assets	5,406	84
Accounts payable and accrued liabilities	3,467	995
Income taxes payable and deferred	(1,548)	(3,708)
Postretirement health care and life insurance benefits	1,517	1,020
Deferred compensation and other liabilities	1,235	828
Other	212	385
Net cash from (used in) operating activities	28,874	(12,810)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(5,373)	(6,067)
Net purchases of trading securities	(2,167)	(2,724)
Purchase of available for sale securities	(20,071)	(37,142)
Sale and maturity of available for sale securities	3,094	1,275
Net cash used in investing activities	(24,517)	(44,658)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares purchased and retired	(7,076)	(8,069)
Dividends paid in cash	(9,276)	(9,157)
Net cash used in financing activities	(16,352)	(17,226)
Decrease in cash and cash equivalents	(11,995)	(74,694)
Cash and cash equivalents at beginning of year	78,612	115,976
Cash and cash equivalents at end of quarter	66,617	41,282
Supplemental cash flow information:
Income taxes paid, net	8,550	7,941
Interest paid	20	29
Stock dividend issued	$ 38,237	$ 47,053