Income Taxes (Tables)

12 Months Ended

Dec. 26, 2015

Income Taxes [Abstract]

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

(dollars in thousands)		2015		2014		2013
Current:
Federal	$	29,888	$	24,809	$	26,994
State		3,325		1,237		6,774
Deferred:
Federal		(188)		2,559		8,973
State		(24)		676		2,429
	$	33,001	$	29,281	$	45,170

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

(dollars in thousands)		2015		2014		2013
Income taxes at federal statutory rate	$	32,316	$	29,282	$	41,425
State income taxes, net of federal income tax benefit		1,112		1,436		5,981
Other		(427)		(1,437)		(2,236)
Provision for income taxes (effective tax rate 35.7%,  35.0% and 38.2%, respectively)	$	33,001	$	29,281	$	45,170

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

(dollars in thousands)		2015		2014
Deferred tax assets:
Accounts receivable	$	813	$	615
Compensated absences		983		362
Long term employment incentives		3,143		1,161
Employee benefit plans		10,485		10,734
General liability insurance		4,048		3,655
Postretirement benefit obligations		5,906		7,676
Net operating loss carryforwards		5,926		6,218
Other		2,173		1,359
Total deferred tax assets		33,477		31,780
Deferred tax liabilities:
Inventories		(6,808)		(7,459)
Unrealized gains on marketable securities		(3,323)		(3,371)
Nondeductible accruals and other		(9,240)		(6,522)
Depreciation		(111,126)		(111,708)
Total deferred tax liabilities		(130,497)		(129,060)
Net deferred tax liability	$	(97,020)	$	(97,280)

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

(dollars in thousands)		2015		2014
Unrecognized tax benefits at beginning of year	$	-	$	-
Increases based on tax positions related to the current year		1,264		-
Additions for tax positions of prior year		-		-
Reductions for tax positions of prior years		-		-
Settlements		-		-
Expiration of the statute of limitations for assessment of taxes		-		-
Unrecognized tax benefits at end of year	$	1,264	$	-