Annual report pursuant to Section 13 and 15(d)

Stock Options - Schedule of Stock Option Activity (Details) (Parenthetical)

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Stock Options - Schedule of Stock Option Activity (Details) (Parenthetical) - USD ($)
 12 Months Ended
Jul. 29, 2020
Jul. 29, 2020
Mar. 25, 2020
Dec. 31, 2020
Dec. 31, 2019
Stock option description     On March 25, 2019, the Company's Board of Directors approved the employment agreement (the "Agreement") with Dr. Herman Weiss, ("Dr. Weiss") whereby will serve as the Company's Chief Executive Officer effective retroactive commencing August 1, 2018, in exchange for compensation package that include inter alia stock options to purchase 5% of the Company's issued and outstanding shares as of March 25, 2019, at an exercise price equal to the fair market value of the Company's shares on the grant date, in accordance with the vesting schedule under which 25% of the stock options will vest on grant and the remaining 75% of the stock options will vest upon consummation of the Company's planned public offering ("Performance Milestone"). On April 29, 2019 (the "Commitment Date"), the Company held its Annual General Meeting of Shareholders, at which the Company's shareholders approved inter alia the aforesaid Agreement.    
Fair value of stock options     1,129,836    
Expected dividend yield     0.00%    
Risk-free interest rate     2.54%    
Expected volatility     125.20%    
Number of Options, Granted       2,523,427 [1] 1,129,836 [2]
Exercise price of option       $ 0.160 $ 0.073
Stock-based compensation expense       $ 2,612,000 $ 1,254,000
Number of shares issued       2,164,502  
General and Administrative Expense [Member]          
Stock-based compensation expense       $ 349,000 $ 100,000
Two Officers [Member]          
Expected dividend yield 0.00%        
Risk-free interest rate 0.25%        
Expected volatility 131.90%        
Number of Options, Granted 2,523,427        
Exercise price of option $ 0.095 $ 0.095      
Option vested period 5 years        
Fair value of stock options, value $ 206,000        
Two Officers [Member] | General and Administrative Expense [Member]          
Fair value of stock options, value 275,000        
Stock-based compensation expense $ 56,000     $ 331,000  
Performance Milestone [Member]          
Options not subject to performance milestone     $ 207,541,000    
Restricted Stock [Member]          
Option vested period 3 years        
Stock-based compensation expense $ 900,000        
Restricted Stock [Member] | Public Offering [Member]          
Number of shares issued   30,000,000      
[1] On July 29, 2020 (the "Commitment Date"), the Company held its Annual General Meeting of Shareholders, at which the shareholders of the Company approved compensation packages for two officers that include inter alia the Company is obligated to grant of 2,545,083 stock options which are exercisable into the same number of shares of common stock at an exercise price of $0.095 per share and shall become vested quarterly over a 5-year period from its grant date. At the Commitment Date, the Company by assistance of third-party appraiser measured the fair value of the stock options in total amount of $206 by using Black-Scholes-Merton pricing model in which the assumptions that have been used are as follows: expected dividend yield of 0%; risk-free interest rate of 0.25%; expected volatility of 131.9%, and stock options exercise period based upon the stated terms. Consequently, the Company recorded stock-based compensation expense in total amount of $56 as part of "General and Administrative Expenses" line in operations in the accompanying consolidated statement of operations. In addition, as one-time bonus as compensation for uncompensated efforts to date, the Company is obligated to grant fully vested shares equal to $275 based on the fair market value of the Company's shares as of July 28, 2020. The Company recorded stock-based compensation expense of this amount as part of "General and Administrative Expenses" line in operations in the accompanying consolidated statement of operations. Moreover, upon consummation of the Company's planned public offering the Company will grant 30,000,000 restricted stock units bonus to the aforesaid officers. At the Commitment Date and December 31, 2020, the likelihood that the Performance Milestone for consummation of the Company's planned public offering was not considered as probable. Thus, During the year ended December 31, 2020, stock-based compensation expense has not been recorded with respect to the Performance Milestone. For the year ended December 31, 2020, the Company recorded stock-based compensation expense amounting to $331 as part of "General and Administrative Expenses" line in operations in the accompanying consolidated statement of operations.
[2] On March 25, 2019, the Company's Board of Directors approved the employment agreement (the "Agreement") with Dr. Herman Weiss, ("Dr. Weiss") whereby will serve as the Company"s Chief Executive Officer effective retroactive commencing August 1, 2018, in exchange for compensation package that include inter alia stock options to purchase 5% of the Company's issued and outstanding shares as of March 25, 2019, at an exercise price equal to the fair market value of the Company's shares on the grant date, in accordance with the vesting schedule under which 25% of the stock options will vest on grant and the remaining 75% of the stock options will vest upon consummation of the Company's planned public offering ("Performance Milestone"). On April 29, 2019 (the "Commitment Date"), the Company held its Annual General Meeting of Shareholders, at which the Company's shareholders approved inter alia the aforesaid Agreement. The likelihood that the Performance Milestone for consummation of the Company's planned public offering was determined to be remote due to termination of Dr. Weiss from his position as the Company's Chief Executive Officer at the beginning of January 2020. Thus, During the year ended December 31, 2019, stock-based compensation expense has not been recorded with respect to the Performance Milestone. At the Commitment Date, the Company by assistance of third-party appraiser measured the fair value of 1,129,836 stock options which are not subject to Performance Milestone in total amount of $208 by using Black-Scholes-Merton pricing model in which the assumptions that have been used are as follows: expected dividend yield of 0%; risk-free interest rate of 2.54%; expected volatility of 125.2%, and stock options exercise period based upon the stated terms. Consequently, the Company recorded stock-based compensation expense in such amount as part of "General and Administrative Expenses" line in operations in the accompanying consolidated statement of operations for the year ended December 31, 2019.