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Related Party Transactions (Tables)
 12 Months Ended
Dec. 31, 2014
Schedule of Services Relating to Operations Paid to Related Party [Table Text Block]
    Year ended  
    December 31,  
Item            
    2014     2013  
Management fees $ 360   $ 360  
Other charges   75     74  
Total $ 435   $ 434  
Schedule of Lease Amounts Paid to Related Parties [Table Text Block]
    Year ended  
Leased premises location   December 31,  
    2014     2013  
Foster City, CA $ 228   $ 228  
Edwardsville, IL   57     —  
White Plains, NY   —     66  
Los Angeles, CA   —     12  
Total $ 285   $ 306