Annual report pursuant to section 13 and 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 12 Months Ended
May 31, 2010
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Schedule of Equity Method Investments [Line Items]        
Net investment income (loss)   $ 658 $ 59 $ 68
Return on investment in Magnolia   1,179 4,735 2,484
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)   658 59 68
Return on investment in Magnolia   $ 1,179 $ 4,735 $ 2,485