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Income Taxes (Schedule of Income Tax Provision (Benefit)) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Current $ (73) $ (930) $ 4,389
Deferred 4,990 (10,619) (1,351)
Benefit of Net Operating Loss Carryforward (772) 16,145 (19,686)
Income Tax Provision (Benefit), Total $ 4,145 $ 4,596 $ (16,648)