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 ($)
 5 Months Ended 6 Months Ended 8 Months Ended 12 Months Ended
Nov. 30, 2019
Oct. 04, 2018
Nov. 21, 2018
Mar. 31, 2020
Mar. 31, 2019
Nov. 29, 2019
Net loss       $ (2,946,000) $ (11,798,000)  
Accumulated deficit       (172,246,000) (169,238,000)  
Working capital       7,518,000 8,905,000  
Net proceeds from sale of common stock       1,376,000 957,000  
Proceeds from sale of equity, net       $ 0 $ 4,743,000  
Public Offering [Member]            
Stock price per share           $ 3.50
Gross proceeds from sale of common stock $ 1,563,000          
Net proceeds from sale of common stock $ 1,376,000          
Stock issued new, shares 446,577          
Unit description     One share of common stock, one share of Series C convertible preferred stock, and warrant      
Unit price per share     $ 9.00      
Proceeds from sale of equity, gross     $ 5,530,000      
Proceeds from sale of equity, net     $ 4,743,000      
Public Offering [Member] | Common Stock [Member]            
Stock issued new, shares     507,156      
Public Offering [Member] | Series C Preferred Stock [Member]            
Stock issued new, shares     10      
Public Offering [Member] | Warrant [Member]            
Stock issued new, shares     307,188      
At Market Issuance Sales Agr [Member]            
Stock price per share   $ 21.51        
Net proceeds from sale of common stock   $ 262,000        
Stock issued new, shares   12,556     29,710  
Proceeds from sale of equity, net         $ 957,000  
At Market Issuance Sales Agr [Member] | Common Stock [Member]            
Stock price per share   $ 21.51        
Stock issued new, shares   12,556        
Proceeds from sale of equity, gross   $ 270,000        
Proceeds from sale of equity, net   $ 262,000