Quarterly report pursuant to Section 13 or 15(d)

Investments, at Equity, Advances to 50% or Less Owned Companies (Details)

v2.4.0.8
Investments, at Equity, Advances to 50% or Less Owned Companies (Details) (Dart Holding Company Ltd. [Member], USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dart Holding Company Ltd. [Member]
        
Schedule of Equity Method Investments [Line Items]        
Operating Revenues $ 9,801 $ 8,849 $ 31,450 $ 33,561
Operating and administrative 7,490 7,820 23,597 25,016
Depreciation 1,301 1,321 3,883 4,030
Total Costs and Expenses 8,791 9,141 27,480 29,046
Operating Income (Loss) 1,010 (292) 3,970 4,515
Net Income (Loss) $ 194 $ (254) $ 2,298 $ 1,215