Quarterly report pursuant to Section 13 or 15(d)

Short Term Investments and Marketable Securities (Details 1)

v2.4.0.6
Short Term Investments and Marketable Securities (Details 1) (USD $)
Aug. 31, 2012
Nov. 30, 2011
Schedule of fair Value of securities    
Available-for-sale securities $ 1,423,412 $ 5,345,022
Quoted market price in active market (Level 1) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 428,523 3,613,522
Quoted market price in active market (Level 2) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 994,889 1,731,500
Corporate Obligations [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 994,889 1,698,775
Corporate Obligations [Member] | Quoted market price in active market (Level 1) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities      
Corporate Obligations [Member] | Quoted market price in active market (Level 2) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 994,889 1,698,775
Limited Partnership [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 280,305 234,445
Limited Partnership [Member] | Quoted market price in active market (Level 1) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 280,305 234,445
Limited Partnership [Member] | Quoted market price in active market (Level 2) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities      
Preferred Stock [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities   2,630,948
Preferred Stock [Member] | Quoted market price in active market (Level 1) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities   2,630,948
Preferred Stock [Member] | Quoted market price in active market (Level 2) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities     
Common Stock [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 148,218 557,827
Common Stock [Member] | Quoted market price in active market (Level 1) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities 148,218 557,827
Common Stock [Member] | Quoted market price in active market (Level 2) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities      
Mutual Funds [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities   223,027
Mutual Funds [Member] | Quoted market price in active market (Level 1) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities   190,302
Mutual Funds [Member] | Quoted market price in active market (Level 2) [Member]
   
Schedule of fair Value of securities    
Available-for-sale securities   $ 32,725