INCOME TAXES (Details) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current [Abstract]
Federal		$ 18,253,000	$ 9,375,000	$ (3,136,000)
State		2,621,000	1,439,000	223,000
Current income tax expense (benefit)		20,874,000	10,814,000	(2,913,000)
Deferred [Abstract]
Federal		(706,000)	(2,235,000)	(7,002,000)
State		54,000	26,000	(945,000)
Deferred income tax expense (benefit)		(652,000)	(2,209,000)	(7,947,000)
Income tax expense (benefit)		20,222,000	8,605,000	(10,860,000)
Effective income tax rate reconciliation [Abstract]
Statutory rates applied to income before income taxes		18,370,000	8,231,000	1,565,000
State income taxes, net of Federal tax benefit		1,610,000	769,000	143,000
Net permanent differences		316,000	8,000	33,000
Change in deferred tax asset valuation allowance	(800,000)	(1,363,000)	(1,207,000)	(14,121,000)
Change in state credits		1,466,000	1,129,000	717,000
Change for net operating loss carrybacks, amended returns and related receivables		(204,000)	342,000	422,000
Change in deferred tax rate		0	(125,000)	274,000
Change in reserve for uncertain tax positions		0	(674,000)	42,000
Other		27,000	132,000	65,000
Income tax expense (benefit)		20,222,000	8,605,000	(10,860,000)
Deferred tax assets [Abstract]
Accounts receivable related		610,000	578,000
Net property and equipment		11,977,000	10,313,000
Leases		5,007,000	5,608,000
Accrued liabilities		776,000	655,000
State tax credits		110,000	1,576,000
Pension		4,633,000	9,515,000
Other		28,000	37,000
Total deferred tax assets		23,141,000	28,282,000
Deferred tax liabilities [Abstract]
Inventory related		8,951,000	8,446,000
Other		643,000	702,000
Total deferred tax liabilities		9,594,000	9,148,000
Valuation allowance		0	(1,363,000)
Net deferred tax assets		13,547,000	17,771,000
Current assets (liabilities) [Abstract]
Current deferred assets		11,048,000	5,060,000
Current deferred liabilities		(10,754,000)	(10,292,000)
Valuation allowance		0	(1,363,000)	(2.6)
Deferred tax assets (liabilities), current		294,000	(6,595,000)
Non-current assets (liabilities) [Abstract]
Non-current deferred assets		39,974,000	46,997,000
Non-current deferred liabilities		(26,721,000)	(22,631,000)
Deferred tax assets (liabilities) non current		13,253,000	24,366,000
Net deferred tax assets		13,547,000	17,771,000
Reconciliation of unrecognized tax benefits [Roll Forward]
Beginning balance	0	0	783,000	785,000
Gross increases - tax positions in prior period		0	0	38,000
Gross decreases - tax positions in prior period		0	0	(40,000)
Reductions related to settlements with taxing authorities and the lapse of the statute of limitations			(783,000)	0
Ending balance		0	0	783,000
Income tax penalties and accrued interest				$ 285,000

The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to change for net operating loss carry backs, amended returns.

No definition available.