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10. COMMITMENTS AND CONTINGENCIES (Tables)
9 Months Ended
Jan. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Future minimum operating lease payments
Year ending April 30,:  Minimum
Lease
Payments
 
2015  $ 
2016   463,000 
2017   476,000 
2018   491,000 
2019   506,000 
Thereafter   608,000 
   $2,544,000