Quarterly report pursuant to Section 13 or 15(d)

SCHEDULE OF STOCK BASED COMPENSATION (Details)

v3.20.2
SCHEDULE OF STOCK BASED COMPENSATION (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense     $ 4,083,000 $ 5,607,000
Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense $ 1,249,000 $ 1,826,000 4,083,000 5,607,000
Tax benefit
Stock option-based compensation expense, net of tax 1,249,000 1,826,000 4,083,000 5,607,000
Stock Option [Member] | Research and Development Expense [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense 765,000 972,000 2,380,000 3,013,000
Stock Option [Member] | Selling, General and Administrative Expenses [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense 484,000 854,000 1,703,000 2,594,000
Stock Option [Member] | Stock Option Based Compensation Expense Included In Operating Expense [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense 1,249,000 1,826,000 4,083,000 5,607,000
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense 161,000 98,000 812,000 348,000
Tax benefit
Stock option-based compensation expense, net of tax 161,000 98,000 812,000 348,000
Restricted Stock [Member] | Research and Development Expense [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense 89,000 66,000 561,000 66,000
Restricted Stock [Member] | Selling, General and Administrative Expenses [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense 72,000 32,000 251,000 282,000
Restricted Stock [Member] | Stock Option Based Compensation Expense Included In Operating Expense [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option-based compensation expense $ 161,000 $ 98,000 $ 812,000 $ 348,000