Quarterly report pursuant to Section 13 or 15(d)

Business and Viability of Operations (Details)

v3.20.1
Business and Viability of Operations (Details)
3 Months Ended
Mar. 30, 2020
USD ($)
$ / shares
shares
Feb. 29, 2020
shares
Feb. 28, 2020
USD ($)
$ / shares
shares
Jan. 23, 2020
USD ($)
$ / shares
shares
Nov. 18, 2019
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
[1]
Oct. 16, 2019
$ / shares
Apr. 18, 2019
shares
Warrant exercisable for shares of common stock | shares                 12,756
Reverse stock split           0.50      
Cash and cash equivalents           $ 755,000 $ 298,000    
Accumulated deficit           $ (190,358,000) $ (187,678,000)    
Nasdaq                  
Price per Unit | $ / shares               $ 1.00  
Minimum of requires in stockholders' equity         $ 2,500,000        
Public offering price | $ / shares               $ 1.00  
Funding Agreement | Convertible debt                  
Principal amount of debt       $ 111,100          
Original issue discount       10.00%          
Shares of common stock issued | shares       500          
Term of warrant exercisable       5 years          
Warrant exercisable for shares of common stock | shares       7,936          
Exercise price of warrants | $ / shares       $ 9.80          
Consideration       $ 100,000          
February 2020 Private Placement [Member]                  
Warrant exercisable for shares of common stock | shares     45,534            
Exercise price of warrants | $ / shares     $ 9.80            
Number of share of common stock per unit | shares   45,534 1            
Warrant to purchase share of common stock per unit | $ / shares     $ 0.50            
Price per Unit | $ / shares     $ 9.17            
Gross proceeds from private placement     $ 835,000            
Reverse stock split   9.80              
March 2020 Private Placement [Member]                  
Shares of common stock issued | shares 227,679                
Exercise price of warrants | $ / shares $ 6.40                
Number of share of common stock per unit | shares 20,400                
Gross proceeds from private placement $ 1,700,000                
Commitment fee payable to the Investor $ 85,000                
[1] The condensed consolidated balance sheet as of December 31, 2019 was derived from the audited consolidated balance sheet as of that date.