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3. BALANCE SHEET DETAIL (Details 6) (USD $)
 3 Months Ended 6 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Mar. 31, 2014
Gross Carrying Amount $ 1,390,000   $ 1,390,000    
Accumulated Amortization 915,000   915,000    
Net Carrying Amount 475,000   475,000   564,000
Amortization of intangible assets 44,000 45,000 89,000 90,000  
Product Designs
          
Gross Carrying Amount 590,000   590,000    
Accumulated Amortization 428,000   428,000    
Net Carrying Amount 162,000   162,000    
Patents
          
Gross Carrying Amount 720,000   720,000    
Accumulated Amortization 407,000   407,000    
Net Carrying Amount 313,000   313,000    
Software.
          
Gross Carrying Amount 80,000   80,000    
Accumulated Amortization $ 80,000   $ 80,000