Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Details Narrative)

v3.20.1
STOCK-BASED COMPENSATION (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
May 03, 2019
Jun. 08, 2018
Jan. 30, 2020
Aug. 31, 2019
Jan. 31, 2019
May 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Weighted average grant date fair value of options granted (in dollars per share)             $ 16.54 $ 277.77  
Stock-based compensation expense             $ 1,457 $ 1,627  
Common Stock [Member]                  
Number of shares issued under ESPP             2,558    
Number of shares issuance             7,938    
2019 Employee Stock Purchase Plan [Member]                  
Number of shares authorized 15,000                
Purchase price of common stock percentage             85.00%    
Number of shares reserved for future issuance             11,041    
Compensation expense             $ 28,000    
2019 Employee Stock Purchase Plan [Member] | Subsequent Event [Member]                  
Number of shares issued under ESPP     1,578            
ESPP withholdings returned to employees     $ 7,000            
Transfer to additional paid-in capital     $ 2,000            
2019 Employee Stock Purchase Plan [Member] | Common Stock [Member]                  
Number of shares issued under ESPP       2,381          
ESPP withholdings returned to employees       $ 16,000          
Transfer to additional paid-in capital       $ 29,000          
2018 Employee Stock Purchase Plan [Member]                  
Compensation expense               32,000  
Employee payroll deductions withheld             $ 9,000 $ 38,000  
2018 Employee Stock Purchase Plan [Member] | Common Stock [Member]                  
Number of shares issued under ESPP         177        
ESPP withholdings returned to employees         $ 35,000        
Transfer to additional paid-in capital         $ 3,000        
2018 Incentive Stock Option Plan [Member]                  
Number of shares issuance   13,200              
2019 Incentive Stock Option Plan [Member]                  
Number of shares reserved for future issuance 140,000           55,825    
2019 Incentive Stock Option Plan [Member] | Vesting 12 Months from Grant Date [Member]                  
Vesting period             12 months    
Vesting percentage             33.33%    
2019 Incentive Stock Option Plan [Member] | Vesting Monthly Thereafter [Member]                  
Vesting period             24 months    
Vesting percentage             2.78%    
10% or More Shareholder [Member] | 2019 Incentive Stock Option Plan [Member] | Minimum [Member]                  
Purchase price of common stock percentage 110.00%                
Non 10% Shareholder Grantee [Member] | 2019 Incentive Stock Option Plan [Member] | Minimum [Member]                  
Purchase price of common stock percentage 100.00%                
Restricted Stock Units [Member] | Non-Employees Directors [Member]                  
Number of shares vested               8  
Restricted Stock Units [Member] | Non-Employees Directors [Member] | 2019 Incentive Stock Option Plan [Member]                  
Vesting period           1 year      
Number of shares vested           57     49
Weighted average grant date fair value of options granted (in dollars per share)           $ 2,290      
Stock Option [Member]                  
Stock-based compensation expense             $ 1,500 $ 1,600  
Unrecognized compensation cost             $ 1,800    
Unrecognized weighted average period             1 year 8 months 1 day