Income Taxes (Tables)

12 Months Ended

Dec. 28, 2013

Income Taxes [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

(dollars in thousands)		2013		2012		2011
Current:
Federal	$	26,994	$	30,258	$	24,518
State		6,774		2,534		781
Deferred:
Federal		8,184		12,107		12,731
State		2,193		3,504		3,992
	$	44,145	$	48,403	$	42,022

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

(dollars in thousands)		2013		2012		2011
Income taxes at federal statutory rate	$	40,553	$	45,820	$	41,151
State income taxes, net of federal income tax benefit		5,828		3,925		2,558
Other		(2,236)		(1,342)		(1,687)
Provision for income taxes (effective tax rate 38.1%,  37.0% and 35.7%, respectively)	$	44,145	$	48,403	$	42,022

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

(dollars in thousands)		2013		2012
Deferred tax assets:
Accounts receivable	$	585	$	426
Compensated absences		403		510
Long term employment incentives		2,785		2,891
Employee benefit plans		4,221		3,784
General liability insurance		1,223		1,113
Postretirement benefit obligations		7,037		6,255
Net operating loss carryforwards		5,736		6,535
Total deferred tax assets		21,990		21,514
Deferred tax liabilities:
Inventories		(6,809)		(6,241)
Unrealized gains on marketable securities		(2,753)		(3,506)
Nondeductible accruals and other		(4,745)		(1,995)
Depreciation		(109,836)		(102,301)
Total deferred tax liabilities		(124,143)		(114,043)
Net deferred tax liability	$	(102,153)	$	(92,529)
Current deferred liability - net	$	(4,219)	$	(3,420)
Noncurrent deferred liability - net		(97,934)		(89,109)
Net deferred tax liability	$	(102,153)	$	(92,529)

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

(dollars in thousands)		2013		2012
Unrecognized tax benefits at beginning of year	$	225	$	161
Increases based on tax positions related to the current year		-		-
Additions for tax positions of prior year		-		64
Reductions for tax positions of prior years		-		-
Settlements		(225)		-
Expiration of the statute of limitations for assessment of taxes		-		-
Unrecognized tax benefits at end of year	$	-	$	225