General form of registration statement for all companies including face-amount certificate companies

8. Property and Equipment (Details)

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8. Property and Equipment (Details) - USD ($)
Jun. 30, 2018
Mar. 31, 2018
Mar. 31, 2017
Property, Plant and Equipment [Abstract]      
Manufacturing, lab, and other equipment   $ 3,653,000 $ 3,319,000
Office equipment   361,000 324,000
Furniture and fixtures   100,000 91,000
Leasehold improvements   592,000 536,000
Property and equipment, gross   4,706,000 4,270,000
Less: accumulated depreciation and amortization   (3,570,000) (3,031,000)
Property and equipment, net $ 988,000 $ 1,136,000 $ 1,239,000