Annual report pursuant to Section 13 and 15(d)

PROPERTY AND EQUIPMENT (Details)

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PROPERTY AND EQUIPMENT (Details) - USD ($)
12 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Property, Plant and Equipment, Gross $ 1,527,409 $ 1,632,280
Less accumulated depreciation 1,364,423 1,455,999
Property, Plant and Equipment, Net 162,986 176,281
Furniture and Fixtures [Member]    
Property, Plant and Equipment, Gross $ 74,265 94,260
Furniture and Fixtures [Member] | Maximum [Member]    
Property, Plant and Equipment, Useful Life 7 years  
Furniture and Fixtures [Member] | Minimum [Member]    
Property, Plant and Equipment, Useful Life 5 years  
Computer Equipment [Member]    
Property, Plant and Equipment, Gross $ 273,755 281,940
Computer Equipment [Member] | Maximum [Member]    
Property, Plant and Equipment, Useful Life 3 years  
Computer Equipment [Member] | Minimum [Member]    
Property, Plant and Equipment, Useful Life 2 years  
Vehicles [Member]    
Property, Plant and Equipment, Gross $ 799,012 869,559
Vehicles [Member] | Maximum [Member]    
Property, Plant and Equipment, Useful Life 7 years  
Vehicles [Member] | Minimum [Member]    
Property, Plant and Equipment, Useful Life 5 years  
Machinery and Equipment [Member]    
Property, Plant and Equipment, Gross $ 88,689 94,833
Property, Plant and Equipment, Useful Life 5 years  
Leasehold Improvements [Member]    
Property, Plant and Equipment, Gross $ 291,688 $ 291,688
Leasehold Improvements [Member] | Maximum [Member]    
Property, Plant and Equipment, Useful Life 3 years  
Leasehold Improvements [Member] | Minimum [Member]    
Property, Plant and Equipment, Useful Life 2 years