Quarterly report pursuant to Section 13 or 15(d)

4. Inventories (Tables)

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4. Inventories (Tables)
 3 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Schedule of inventories
    June 30,     March 31,  
    2016     2016  
Raw materials   $ 1,218,000     $ 1,104,000  
Finished goods     774,000       536,000  
    $ 1,992,000     $ 1,640,000