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Note 15-commitments and Contingencies (Details) (USD $)
Jan. 31, 2014
Apr. 30, 2013
Dec. 08, 2011
Aug. 25, 2011
Details        
Purchase price for apartment units held for sale       $ 2,390,325
Payment of purchase price for apartment units held for sale     1,195,162 717,097
Investment in real estate held for resale $ 1,981,879 $ 1,947,042