Annual report pursuant to Section 13 and 15(d)

VARIABLE INTEREST ENTITIES (Detail Textuals)

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VARIABLE INTEREST ENTITIES (Detail Textuals) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 12 Months Ended
Aug. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2011
GED
Dec. 31, 2007
GED
Dec. 31, 2011
GEM
Variable Interest Entity [Line Items]            
Percentage of ownership interest in GED 50.00%     50.00%    
Growth rate percent share in GED's         5.00%  
Terms of agreement         Under the terms of the joint venture agreement, as restructured in 2007, we received the greater of 50% of GED's member distribution as prescribed under the joint venture agreement, or a 5% growth rate in its 50% share of GED's prior year member distribution through the expiration of the GED management contract on August 31, 2011.  
Total current assets   $ 32,339 $ 23,214     $ 2,500