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Stock-Based Compensation (Details Narrative) - USD ($)
1 Months Ended 12 Months Ended
Sep. 28, 2018
Dec. 31, 2018
Dec. 31, 2018
Dec. 31, 2017
May 16, 2017
Number of shares reserved for future issuance   3,148,743 3,148,743   200,000
2018 Stock Incentive Plan [Member]          
Equity awards, number of stock authorized   2,700,000 2,700,000    
Percentage of fair market value of shares   100.00% 100.00%    
Percentage of outstanding stock determining factor for incentive stock price   10.00% 10.00%    
Compensation cost     $ 4,600,000 $ 1,100,000  
Stock based compensation cost expected to be recognized, weighted average period     10 months 25 days    
Weighted average grant date fair value of stock option awards granted     $ 2.36 $ 2.32  
2018 Stock Incentive Plan [Member] | Minimum [Member]          
Percentage of fair market value of shares   110.00% 110.00%    
2007 Stock Incentive Plan [Member]          
Equity awards, number of stock authorized   688,531 688,531    
Unrecognized compensation cost related to non-vested stock based compensation   $ 1,800,000 $ 1,800,000    
Inducement Option Grants [Member] | Three New Employees [Member]          
Inducement option grant, exercise price per share $ 2.77        
Options expiration period 10 years        
Number of equity awards granted   106,502      
Inducement Option Grants [Member] | Three New Employees [Member] | Restricted Stock Awards [Member]          
Shares issued 164,004        
Restricted Stock Awards [Member]          
Weighted average grant date fair value of stock option awards granted     $ 2.71 $ 42.20  
Restricted Stock Awards [Member] | Inducement Option Grants [Member] | Three New Employees [Member]          
Shares issued 19,000        
Equity Stock Awards [Member]          
Number of shares reserved for future issuance   3,399,893 3,399,893    
Number of equity awards granted     3,064,741    
Number of equity awards available for future issuance   335,152 335,152