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5. Equipment and Leasehold Improvements (Tables)
 12 Months Ended
Mar. 31, 2013
Property, Plant and Equipment Disclosure [Text Block]  
Property, Plant and Equipment [Table Text Block] Equipment and leasehold improvements consist of the following:

   
March 31,
 
   
2013
   
2012
 
             
Leasehold Improvements
 
$
94,413
   
$
92,663
 
Machinery and equipment
   
1,474,192
     
1,407,096
 
Automobiles
   
4,741
     
4,741
 
Sales equipment
   
591,109
     
561,571
 
Assets under capitalized leases
   
610,995
     
610,995
 
Less: Accumulated depreciation & amortization
   
(2,187,492
)
   
(1,970,196
)
                 
   
$
587,958
   
$
706,870