Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets (Details Narrative)

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Goodwill and Intangible Assets (Details Narrative) (USD $)
3 Months Ended 9 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Jan. 31, 2014
Jan. 31, 2013
Goodwill and Intangible Assets (Textual) [Abstract]        
Intangible assets, amortization method Straight-line basis      
Residual value of intangible assets $ 0   $ 0  
Intangible assets amortization expense $ 41,000 $ 41,000 $ 82,000 $ 82,000
Maximum
       
Goodwill and Intangible Assets (Textual) [Abstract]        
Intangible asset, estimated period of benefit 5 years      
Minimum
       
Goodwill and Intangible Assets (Textual) [Abstract]        
Intangible asset, estimated period of benefit 4 years      
Research and Development and Customer Relationships
       
Goodwill and Intangible Assets (Textual) [Abstract]        
Intangible assets, amortization method Amortized over a two-year period at a rate of 65% of the gross value acquired in the first year subsequent to their acquisition and 35% of the gross value acquired in the second year.