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Stock-Based Compensation (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 29, 2020
Apr. 30, 2019
Mar. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Options exercisable term       10 years  
Options vesting period       3 years  
Aggregate intrinsic value of options       $ 0  
Weighted average fair value       $ 0.19  
Share based compensation   $ 341,000 $ 2,100,000    
Number of share-based payment award, accelerated vesting   328,000      
Reissuance of warrants 13,750,000        
Warrants excersiable term       2 years 9 months  
Number of warrants issued during period     13,750,000  
Maximum [Member]          
Warrants excersiable term       5 years  
Minimum [Member]          
Warrants excersiable term       3 years  
2017 Equity Incentive Plan [Member] | Maximum [Member]          
Number of common stock issued to awards       2,000,000  
2015 and 2005 Equity Incentive Plan [Member] | Maximum [Member]          
Number of common stock issued to awards       7,250,000