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INCOME TAXES (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Current [Abstract] |  |  |  |
Federal |  | $ 9,375,000 | $ (3,136,000) | $ 2,640,000
State |  | 1,439,000 | 223,000 | 542,000
Current income tax expense (benefit) |  | 10,814,000 | (2,913,000) | 3,182,000
Deferred [Abstract] |  |  |  |
Federal |  | (2,235,000) | (7,002,000) | (2,839,000)
State |  | 26,000 | (945,000) | (114,000)
Deferred income tax expense (benefit) |  | (2,209,000) | (7,947,000) | (2,953,000)
Income tax expense (benefit) |  | 8,605,000 | (10,860,000) | 229,000
Income tax charge in other comprehensive income |  |  |  | 1,119,000
Effective income tax rate reconciliation [Abstract] |  |  |  |
Statutory rates applied to income (loss) before income taxes |  | 8,231,000 | 1,565,000 | 3,036,000
State income taxes, net of Federal tax benefit |  | 769,000 | 143,000 | 302,000
Net permanent differences |  | 8,000 | 33,000 | (25,000)
Change in deferred tax asset valuation allowance | 14,100,000 | (1,207,000) | (14,121,000) | (3,133,000)
Change in state credits |  | 1,129,000 | 717,000 | 0
Change for net operating loss carrybacks, amended returns and related receivables |  | 342,000 | 422,000 | 0
Change in deferred tax rate |  | (125,000) | 274,000 | 0
Change in reserve for uncertain tax positions |  | (674,000) | 42,000 | 16,000
Other |  | 132,000 | 65,000 | 33,000
Income tax expense (benefit) |  | 8,605,000 | (10,860,000) | 229,000
Deferred tax assets [Abstract] |  |  |  |
Accounts receivable related | 578,000 | 578,000 | 573,000 |
Net property and equipment | 10,313,000 | 10,313,000 | 7,994,000 |
Leases | 5,608,000 | 5,608,000 | 4,737,000 |
Accrued liabilities | 655,000 | 655,000 | 140,000 |
State tax credits | 1,576,000 | 1,576,000 | 2,705,000 |
Pensions | 9,515,000 | 9,515,000 | 10,435,000 |
Other | 37,000 | 37,000 | 709,000 |
Total deferred tax assets | 28,282,000 | 28,282,000 | 27,293,000 |
Deferred tax liabilities [Abstract] |  |  |  |
Inventory related | 8,446,000 | 8,446,000 | 7,938,000 |
Other | 702,000 | 702,000 | 739,000 |
Total deferred tax liabilities | 9,148,000 | 9,148,000 | 8,677,000 |
Valuation allowance | (1,363,000) | (1,363,000) | (2,570,000) |
Net deferred tax assets | 17,771,000 | 17,771,000 | 16,046,000 |
Current assets (liabilities) [Abstract] |  |  |  |
Current deferred assets | 5,060,000 | 5,060,000 | 3,331,000 |
Current deferred liabilities | (10,292,000) | (10,292,000) | (9,796,000) |
Valuation allowance | (1,363,000) | (1,363,000) | (170,000) |
Deferred tax assets (liabilities), current | (6,595,000) | (6,595,000) | (6,635,000) |
Non-current assets (liabilities) [Abstract] |  |  |  |
Non-current deferred assets | 46,997,000 | 46,997,000 | 45,208,000 |
Non-current deferred liabilities | (22,631,000) | (22,631,000) | (20,127,000) |
Valuation allowance | 0 | 0 | (2,400,000) |
Deferred tax assets (liabilities) non current | 24,366,000 | 24,366,000 | 22,681,000 |
Net deferred tax assets | 17,771,000 | 17,771,000 | 16,046,000 |
Valuation allowance change in amount |  |  |  | 2,014,000
Decrease in income tax expense related to valuation allowance evaluation |  |  |  | 3,133,000
Charged to accumulated other comprehensive loss for the portion related to our pension plan |  |  |  | 1,119,000
Reconciliation of unrecognized tax benefits [Roll Forward] |  |  |  |
Beginning balance |  | 783,000 | 785,000 | 785,000
Gross increases - tax positions in prior period |  | 0 | 38,000 | 0
Gross decreases - tax positions in prior period |  | 0 | (40,000) | 0
Reductions related to settlements with taxing authorities and the lapse of the statue of limitations |  | (783,000) | 0 | 0
Ending balance | 0 | 0 | 783,000 | 785,000
Income tax penalties and accrued interest |  |  | $ 285,000 |

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