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Note 1 - Basis of Presentation (Details) - Accumulated other comprehensive loss (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Accumulated balances of items included in accumulated other comprehensive loss:    
Increase in pension liability $ (33,065) $ (33,065)
Income tax benefit (12,895) (12,895)
Accumulated other comprehensive loss $ (20,170) $ (20,170)