CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 18,314	$ 17,438
Adjustments to reconcile net earnings to net cash used in operating activities:
Depreciation and amortization	10,189	9,783
Loss on step acquisition	529
Loss from equity method investment		477
Amortization of marketable security premiums	1,689	1,468
Changes in operating assets and liabilities:
Accounts receivable	16,520	17,207
Other receivables	3,710	(594)
Inventories	(39,770)	(37,188)
Prepaid expenses and other assets	1,063	27,442
Accounts payable and accrued liabilities	348	3,317
Income taxes payable and deferred	(1,119)	(5,159)
Postretirement health care and life insurance benefits	(421)	1,362
Deferred compensation and other liabilities	1,764	1,620
Other	101	(80)
Net cash from operating activities	12,917	37,093
CASH FLOWS FROM INVESTING ACTIVITIES:
Net cash acquired in step acquisition	161
Restricted cash	193
Capital expenditures	(5,895)	(5,960)
Net sales (purchases) of trading securities	(2,627)	(2,269)
Purchase of available for sale securities	(27,331)	(63,992)
Sale and maturity of available for sale securities	11,566	18,530
Net cash used in investing activities	(23,933)	(53,691)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares purchased and retired	(10,381)	(10,568)
Dividends paid in cash	(9,567)	(4,750)
Repayment of bank loans	(228)
Net cash used in financing activities	(20,176)	(15,318)
Decrease in cash and cash equivalents	(31,192)	(31,916)
Cash and cash equivalents at beginning of year	88,283	63,862
Cash and cash equivalents at end of quarter	57,091	31,946
Supplemental cash flow information:
Income taxes paid, net	10,496	12,996
Interest paid	31	17
Stock dividend issued	$ 52,165	$ 48,925