Annual report pursuant to Section 13 and 15(d)

2. Liquidity and Financial Condition (Details Narrative)

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2. Liquidity and Financial Condition (Details Narrative) - USD ($)
 12 Months Ended 24 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Net loss $ (10,162,000) $ (8,203,000)  
Accumulated deficit (152,375,000) (142,213,000) $ (152,375,000)
Working capital 9,337,000 7,066,000 9,337,000
Proceeds from sale of equity, gross 6,144,000 6,785,000  
At-the-Market Issuance Sales Agreement [Member]      
Proceeds from sale of equity, gross 3,263,000 1,443,000 $ 4,706,000
Proceeds from sale of equity, net $ 3,150,000 $ 1,341,000  
Shares issued 2,254,596 467,934  
Dawson James Securities, Inc. [Member]      
Warrants issued 250,000    
Common Stock and Warrants [Member]      
Proceeds from sale of equity, gross $ 3,400,000    
Proceeds from sale of equity, net 2,994,000    
Legal fees and expenses related to offering $ 50,000