7. Property and Equipment (Tables)

12 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of property and equipment

	March 31,
	2019			2018
Manufacturing, lab, and other equipment	$	3,575,000		$	3,653,000
Office equipment		380,000			361,000
Furniture and fixtures		110,000			100,000
Leasehold improvements		576,000			592,000
		4,641,000			4,706,000
Less: accumulated depreciation and amortization		(3,914,000	)		(3,570,000	)
	$	727,000		$	1,136,000