Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Schedule of Income tax expense (benefit)

	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2012		2011		2010
	(Thousands of dollars)
Current
Federal	$	—	$	—	$	—
State		360		180		185
Foreign		—		—		—
Deferred – principally Federal		15,632		3,054		7,291
Total	$	15,992	$	3,234	$	7,476

Schedule Of Income tax expense (benefit) as a percentage of pre-tax earnings

	Year Ended				Year Ended				Year Ended
	December 31, 2012				December 31, 2011				December 31, 2010
	(Thousands of dollars, except percentage amounts)
	Amount		Tax Rate %		Amount		Tax Rate %		Amount		Tax Rate %
Income taxes at statutory rate	$	11,917		35	$	2,830		35	$	5,108		35
Increase (decrease) in taxes resulting from:
Valuation allowance – foreign tax credit		1,649		5		—		—		1,175		8
State income taxes, net of federal benefit		1,688		5		385		5		987		7
Valuation allowance – other		330		1		—		—		—		—
Other items – net		408		1		19		—		206		1
Total	$	15,992		47	$	3,234		40	$	7,476		51

Schedule of tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities

	2012			2011
	(Thousands of dollars)
Deferred tax assets:
Deferred compensation	$	1,301		$	1,372
Foreign tax credits		4,346			4,346
Vacation and bonus accrual		4,213			2,448
Inventory valuation		5,837			5,615
Rental accrual		1,111			1,191
Hurricane relief credit		1,255			1,255
Stock-based compensation		1,102			663
Other		1,688			1,243
Net operating losses		77,902			74,784
Total deferred tax assets		98,755			92,917
Valuation allowance – state NOL carryforwards		(541	)		(541	)
Valuation allowance – tax credit carryforwards		(2,825	)		(1,175	)
Valuation allowance – other		(330	)		—
Total deferred tax assets, net		95,059			91,201
Deferred tax liabilities:
Tax depreciation in excess of book depreciation		(188,510	)		(169,005	)
Total deferred tax liabilities		(188,510	)		(169,005	)
Net deferred tax liabilities	$	(93,451	)	$	(77,804	)
Current deferred tax assets	$	11,967		$	8,133
Deferred tax liability – long-term		(105,418	)		(85,937	)
Net deferred tax liabilities	$	(93,451	)	$	(77,804	)