Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Additional Information (Details)

v3.19.3
STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($)
1 Months Ended 2 Months Ended 12 Months Ended
Sep. 05, 2018
Feb. 03, 2017
Aug. 09, 2016
Jun. 13, 2013
Jul. 19, 2018
May 31, 2016
Sep. 30, 2019
Sep. 30, 2018
Oct. 02, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
common stock, shares, issued             173,577,233 164,397,013  
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, minimum             83.27%    
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             1.47%    
Share-based compensation arrangement by share-based payment award, fair value assumptions, risk free interest rate, maximum             3.23%    
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             6 years 3 months    
Common Stock, Shares Authorized             300,000,000 300,000,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross             1,925,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares             13,795,584    
Proceeds from Stock Options Exercised             $ 32,400 $ 77,700  
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price             $ 0.38    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period             1,525,000    
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 Rights, Percentage           100.00%      
Non-Employee Restricted Shares [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Allocated share-based compensation expense             $ 397,000 600,000  
Research and Development Expense [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Allocated share-based compensation expense             347,000 349,000  
General and Administrative Expense [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Allocated share-based compensation expense             483,000 564,000  
General and Administrative Expense [Member] | Restricted Stock [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Allocated share-based compensation expense             $ 0 229,000  
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             16,494,212    
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             7,027,500    
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             $ 830,000 $ 913,000  
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 6 months 7 days    
Common Stock, Shares Authorized             25,114,256   28,114,256
Share-based compensation arrangement by share-based payment award, number of additional shares authorized       3,000,000          
Stock Issued During Period, Shares, New Issues             477,269 116,883  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross             87,567 210,000  
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period             1,437,433 225,000  
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee     375,000            
Proceeds from Stock Options Exercised             $ 32,400 $ 77,700  
2013 Stock Incentive Plan | Restricted Stock [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
common stock, shares, issued     225,000            
Share-based compensation arrangement by share-based payment award, award vesting period 90 days                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross             225,000    
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee     375,000            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   100.00%              
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price     $ 0.72            
Share Price     $ 0.72            
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, Options, Vested, Number of Shares 50,000                
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, Options, Vested, Number of Shares 50,000                
2013 Stock Incentive Plan | Chief Executive Officer [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee     125,000            
2013 Stock Incentive Plan | Chief Executive Officer [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, Options, Vested, Number of Shares     75,000            
2013 Stock Incentive Plan | Chief Executive Officer [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     120 days            
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee     125,000            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares     75,000            
2013 Stock Incentive Plan | Chief Executive Officer [Member] | Share-based Compensation Award, Tranche Three [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based compensation arrangement by share-based payment award, award vesting period     150 days            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares     75,000            
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             4,190,443    
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, total             $ 331,000    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage         100.00%        
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             925,000    
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             1,000,000    
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, Other         220,000        
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   1,750,000     745,000