Quarterly report pursuant to Section 13 or 15(d)

5. Inventories (Tables)

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5. Inventories (Tables)
 9 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Schedule of inventories
    December 31,     March 31,  
    2017     2017  
Raw materials   $ 1,526,000     $ 1,480,000  
Finished goods     1,175,000       741,000  
    $ 2,701,000     $ 2,221,000