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INCOME TAXES (Details) (USD $)
6 Months Ended 9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Dec. 31, 2010
INCOME TAXES [Abstract]      
Annual distribution minimum (in hundredths) 90.00%    
Ordinary dividends declared and paid   $ 3,003,030 $ 2,993,623
Federal excise tax (in hundredths)   4.00%  
Minimum distribution to avoid excise tax (in hundredths)   98.00%  
Investment company ordinary taxable income, Maximum (in hundredths)   100.00% 100.00%
Federal tax rate (in hundredths) 35.00%    
Net long term unrealized capital gains, tax basis   3,568,376 70,221,589
Net long-term capital gains, book basis   4,465,088 70,325,930
Reduction in the gain on the sale of a business     4,217,985
Long term capital gains federal taxes   $ 1,248,932 $ 24,577,557
Period expected to maintain regulated investment company status longer than one year