Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Stock-based Compensation (Details Textual)

v3.20.1
Note 10 - Stock-based Compensation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Mar. 10, 2020
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Subscription Rate   17.50%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares (in shares)   13,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)   10 years
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount   $ 22,240
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)   1 year 292 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   645,000
Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) 90 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 645,000