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Goodwill And Other Intangible Assets (Estimated Aggregate Amortization Expense) (Details) - USD ($)
Oct. 31, 2015
Apr. 30, 2015
Goodwill And Other Intangible Assets [Abstract]    
For the remaining 6 months of the fiscal year ending April 30, 2016 $ 237,030  
For the fiscal year ending April 30, 2017 490,010  
For the fiscal year ending April 30, 2018 435,043  
For the fiscal year ending April 30, 2019 423,721  
For the fiscal year ending April 30, 2020 411,406  
Thereafter 2,943,065  
Total $ 4,940,275 $ 5,174,144