XML 41 R13.htm IDEA: XBRL DOCUMENT v2.4.0.6
Inventories
3 Months Ended
Jun. 30, 2012
Inventories [Abstract]  
Inventories
6. Inventories

Inventories are stated at the lower of cost (first-in, first-out method) or market (net realizable value).  Inventories consist of the following:
 
        
   
June 30, 2012
  
March 31, 2012
 
        
Raw materials
 $211,000  $219,000 
Work-in-process
  27,000   1,000 
Finished goods
  576,000   479,000 
          
   $814,000  $699,000