Quarterly report pursuant to sections 13 or 15(d)

Investment in Magnolia Fund (Details)

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Investment in Magnolia Fund (Details) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 3 Months Ended
May 31, 2010
Dec. 31, 2012
Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]      
Company's share of distributions      $ 99
Magnolia TC 2, LLC [Member]
     
Schedule of Equity Method Investments [Line Items]      
Payments to obtain interest in equity method investment 12,150    
Percent of equity interest 39.00% 39.00%  
Minimum percent of face amount of the certificate required to be paid to obtain a tax certificate   5.00%  
Percentage of earnings recognized on tax certificate portfolio   5.00%  
Expenses, acquisition fee percentage   1.00%  
Net investment income (loss)   79 97
Company's share of distributions     $ 99