XML 65 R41.htm IDEA: XBRL DOCUMENT v3.10.0.1
Shareholders’ Equity - Ordinary Shares (Details) - Ordinary shares
Sep. 30, 2018
$ / shares
shares
Jun. 22, 2018
£ / shares
Jun. 22, 2018
$ / shares
Sep. 30, 2017
$ / shares
shares
Class of Stock        
Common stock, shares authorized (shares) 200,000,000     37,426,509
Common stock, par value (usd per share) | (per share) $ 0.000042 £ 0.000032 $ 0.000042 $ 0.000042