Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Additional Information (Details)

v3.20.4
STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended
Oct. 14, 2020
Sep. 05, 2018
Jul. 19, 2018
Jun. 18, 2013
Dec. 31, 2020
Dec. 31, 2019
Oct. 01, 2020
Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, minimum         79.44%      
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, maximum         119.44%      
Share-based compensation arrangement by share-based payment award, fair value assumptions, risk free interest rate, minimum         0.13%      
Share-based compensation arrangement by share-based payment award, fair value assumptions, risk free interest rate, maximum         2.85%      
Share based compensation arrangement by share based payment award fair value assumptions expected forfeiture rate         0.00%      
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected dividend rate         0.00%      
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected term         5 years 7 months 6 days      
Common Stock, Shares Authorized         800,000,000     800,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         975,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares         16,587,085      
Non-Employee Restricted Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Allocated share-based compensation expense         $ 40,000 $ 0    
Research and Development Expense [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Allocated share-based compensation expense         26,000 76,000    
General and Administrative Expense [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Allocated share-based compensation expense         $ 60,000 83,000    
Employees And Directors [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         19,179,212      
Consultants [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         8,692,500      
Consultants [Member] | Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted   100,000            
Employees, Directors And Consultants [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Allocated share-based compensation expense         $ 86,000 $ 159,000    
2013 Stock Incentive Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Increase In Aggregate Number Of Shares             3,000,000  
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition         1 year 4 months 28 days      
Common Stock, Shares Authorized             31,114,256 28,114,256
Share-based compensation arrangement by share-based payment award, number of additional shares authorized       3,000,000        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         0 0    
2013 Stock Incentive Plan | Restricted Stock [Member] | Share-based Compensation Award, Tranche One [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, award vesting period   90 days            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 100.00% 100.00% 100.00%          
2013 Stock Incentive Plan | Restricted Stock [Member] | Share-based Compensation Award, Tranche Two [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, award vesting period   365 days            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares   50,000            
Plan 2013 [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, number of shares available for grant         6,873,199      
Plan 2013 [Member] | Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, award vesting period 90 days              
Plan 2013 [Member] | Employees And Directors [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         0      
Plan 2013 [Member] | Consultants [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         975,000      
Plan 2013 [Member] | Consultants [Member] | Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted 50,000              
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Other   50,000 220,000          
Plan 2013 [Member] | Employees, Directors And Consultants [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Allocated share-based compensation expense         $ 265,000      
Plan 2013 [Member] | Board of Directors And Management [Member] | Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted     745,000