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Notes Receivable-Related Party (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
1 Months Ended 21 Months Ended 39 Months Ended 54 Months Ended
Sep. 30, 2013
Mar. 31, 2009
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Jun. 25, 2007
Receivables [Abstract]                
Notes Receivable, Related Parties, Noncurrent         $ 3,581 $ 3,581 $ 3,600 $ 3,000
Related Party Transaction, Rate   8.00% 6.00%          
Related Party Shares Pledged As Collateral 472,500              
Market value shares pledged as collateral related party -in dollars         16,207      
Interest income related party -in dollars       $ 1,090