Short Term Investments and Marketable Securities (Details 1) (USD $)
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Aug. 31, 2012
|
Nov. 30, 2011
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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]
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Schedule of fair Value of securities | ||
Available-for-sale securities | 428,523 | 3,613,522 |
Quoted market price in active market (Level 2) [Member]
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Schedule of fair Value of securities | ||
Available-for-sale securities | 994,889 | 1,731,500 |
Corporate Obligations [Member]
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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]
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Schedule of fair Value of securities | ||
Available-for-sale securities | ||
Corporate Obligations [Member] | Quoted market price in active market (Level 2) [Member]
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Schedule of fair Value of securities | ||
Available-for-sale securities | 994,889 | 1,698,775 |
Limited Partnership [Member]
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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]
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||
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]
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Schedule of fair Value of securities | ||
Available-for-sale securities | ||
Preferred Stock [Member]
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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]
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||
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]
|
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Schedule of fair Value of securities | ||
Available-for-sale securities | ||
Common Stock [Member]
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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]
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||
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]
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||
Schedule of fair Value of securities | ||
Available-for-sale securities | ||
Mutual Funds [Member]
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Schedule of fair Value of securities | ||
Available-for-sale securities | 223,027 | |
Mutual Funds [Member] | Quoted market price in active market (Level 1) [Member]
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||
Schedule of fair Value of securities | ||
Available-for-sale securities | 190,302 | |
Mutual Funds [Member] | Quoted market price in active market (Level 2) [Member]
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||
Schedule of fair Value of securities | ||
Available-for-sale securities | $ 32,725 |