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5. INVENTORIES
3 Months Ended
Jul. 31, 2015
Inventory Disclosure [Abstract]  
5. INVENTORIES

Inventories are stated at the lower of cost or market and primarily include raw materials, direct labor and overhead costs (work-in-process) associated with our wholly-owned subsidiary, Avid. Cost is determined by the first-in, first-out method. Inventories consist of the following:

 

  

July 31,

2015

  

April 30,

2015

 
Raw materials  $6,176,000   $3,821,000 
Work-in-process   4,281,000    3,533,000 
Total inventories  $10,457,000   $7,354,000