v2.4.0.6
Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Consolidated Balance Sheets [Abstract]    
Receivables, net of allowance for bad debts $ 62 $ 144
Property and equipment, net of accumulated depreciation 5,164 4,271
Oil and gas properties and equipment, net of accumulated depletion $ 155 $ 134
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 25,000,000 25,000,000
Preferred stock, shares issued      
Common stock, par value $ 1.00 $ 1.00
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 36,835,732 36,667,210
Treasury stock, common shares 2,212,876 1,216,647