Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Stock-based Compensation (Details Textual)

v3.19.2
Note 15 - Stock-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 5 Months Ended
Dec. 05, 2018
Apr. 30, 2019
Apr. 30, 2019
Equivalent Vested Options Rolled Forward from Predecessor to Successor     2,783,479
Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit     $ 0.87
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit     6.09
Share-based Payment Arrangement, Accelerated Cost $ 0.6    
Selling, General and Administrative Expenses [Member]      
Share-based Payment Arrangement, Expense $ 0.1    
The 2018 Omnibus Incentive Plan [Member]      
Share-based Payment Arrangement, Expense   $ 0.4  
The 2018 Omnibus Incentive Plan [Member] | UNITED KINGDOM      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance   $ 0.01 $ 0.01