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Fair Value of Financial Instruments (Details) (USD $)
Aug. 31, 2012
Aug. 31, 2011
Marketable Securities $ 197,000 $ 892,000
Fair Value, Inputs, Level 1 [Member]
   
Marketable Securities 197,000 892,000
Fair Value, Inputs, Level 2 [Member]
   
Marketable Securities 0 0
Fair Value, Inputs, Level 3 [Member]
   
Marketable Securities $ 0 $ 0