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SOURCES OF INCOME
12 Months Ended
Mar. 31, 2012
SOURCES OF INCOME [Abstract]  
SOURCES OF INCOME
10.           SOURCES OF INCOME

   
Investment Income
  
Realized Gain (Loss) on Investments
 
Year Ended
March 31, 2012
 
Interest
  
Dividends
  
Other
Income
  
Before Income
Taxes
 
Companies more than 25% owned
 $  $5,553,140  $493,967  $(10,933,517)
Companies 5% to 25% owned
  253,652   1,006,572   59,700   (45,287)
Companies less than 25% owned
  1,674,051   160,729   79,250   22,805,680 
Other sources, including temporary investments
  52,477      699    
   $1,980,180  $6,720,441  $633,616  $11,826,876 


   
Investment Income
  
Realized Gain (Loss) on Investments
 
Year Ended
March 31, 2011
 
Interest
  
Dividends
  
Other
Income
  
Before Income
Taxes
 
Companies more than 25% owned
 $  $5,024,061  $671,867  $70,294,097 
Companies 5% to 25% owned
     326,940   13,000   (6,863,347)
Companies less than 25% owned
  1,304,496   81,270      31,833 
Other sources, including temporary investments
  59,642      86,871    
   $1,364,138  $5,432,271  $771,738  $63,462,583 


   
Investment Income
  
Realized Gain (Loss) on Investments
 
Year Ended
March 31, 2010
 
Interest
  
Dividends
  
Other Income
  
Before Income Taxes
 
Companies more than 25% owned
 $14,473  $3,359,942  $1,055,900  $1,433,472 
Companies 5% to 25% owned
  1,500   326,940   13,000    
Companies less than 25% owned
  1,009,276   101,798   206,522   206,522 
Other sources, including temporary investments
  19,618      337    
   $1,044,867  $3,788,680  $1,275,759  $1,639,994