Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION AND WARRANTS - Stock option plans (Details)

v3.19.3.a.u2
STOCK-BASED COMPENSATION AND WARRANTS - Stock option plans (Details) - shares
shares in Thousands
Dec. 31, 2019
Jul. 31, 2019
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 52,035 33,950  
Number of shares outstanding 48,021   13,865
Number of shares available 4,014    
2014 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 2,185    
Number of shares outstanding 2,185    
2015 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 6,850    
Number of shares outstanding 4,605    
Number of shares available 2,245    
2016 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 28,000    
Number of shares outstanding 26,231    
Number of shares available 1,769    
2019 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 15,000    
Number of shares outstanding 15,000