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
Mar. 31, 2018
Mar. 31, 2017
Net income (loss) $ (14,328,000) $ 9,274,000
Accumulated deficit (157,440,000) (143,101,000)
Working capital $ 12,993,000 19,355,000
Proceeds from sale of stock, net   $ 0
Public Offering [Member]    
Stock issued new, shares 1,428,570  
Proceeds from sale of stock, gross $ 5,000,000  
Proceeds from sale of stock, net $ 4,500,000  
At-the-Market Issuance Sales Agreement [Member]    
Stock issued new, shares 228,000  
Proceeds from sale of stock, gross $ 1,034,000  
Proceeds from sale of stock, net $ 968,000