Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

v3.20.2
Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 9 Months Ended
May 26, 2020
May 12, 2020
Feb. 03, 2020
Feb. 14, 2017
Jan. 23, 2020
Jul. 31, 2018
Sep. 30, 2020
Dec. 31, 2019
Stockholders' Equity (Textual)                
Common stock, shares authorized             15,000,000 15,000,000
Common stock, par value             $ 0.001 $ 0.001
Preferred stock, shares authorized             500,000 500,000
Preferred stock, par value             $ 0.001 $ 0.001
Proceeds from issuance of private placement and public offering             $ 2,233  
Sale of common stock, shares           1,075,231    
Gross proceeds of common stock value           $ 1,512    
Common Stock [Member]                
Stockholders' Equity (Textual)                
Sale of common stock, shares 735,000 81,695 140,085   7,322      
Sale of purchase price per share $ 1.38 $ 1.18 $ 1.55   $ 1.50      
Gross proceeds of common stock value $ 976 $ 97 $ 217   $ 11      
Private Placement [Member]                
Stockholders' Equity (Textual)                
Sale of purchase price per share             $ 1.21  
At The Market Offerings [Member] | Maximum [Member]                
Stockholders' Equity (Textual)                
Sale of purchase price per share             1.55  
At The Market Offerings [Member] | Minimum [Member]                
Stockholders' Equity (Textual)                
Sale of purchase price per share             $ 1.18  
Series A Preferred Stock [Member]                
Stockholders' Equity (Textual)                
Series A preferred stock purchase right, description       Each Right entitles the registered holder, upon the occurrence of certain events specified in the Rights Agreement, to purchase from the Company one one-thousandth of a share of the Company’s Series A Preferred Stock at a price of $7.00, subject to certain adjustments.