3. BALANCE SHEET DETAIL - Intangible assets (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Gross Carrying Amount	$ 4,890,000		$ 4,890,000
Accumulated Amortization	1,142,000		1,142,000
Net Carrying Amount	3,748,000		3,748,000		$ 393,000
Amortization of intangible assets	63,000	$ 41,000	145,000	$ 130,000
Product designs
Gross Carrying Amount	590,000		590,000
Accumulated Amortization	534,000		534,000
Net Carrying Amount	56,000		56,000
Patents
Gross Carrying Amount	4,220,000		4,220,000
Accumulated Amortization	528,000		528,000
Net Carrying Amount	3,692,000		3,692,000
Software.
Gross Carrying Amount	80,000		80,000
Accumulated Amortization	$ 80,000		$ 80,000