Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)

v3.10.0.1
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)
$ in Thousands
Sep. 30, 2018
£ / shares
Sep. 30, 2018
USD ($)
shares
Dec. 31, 2017
£ / shares
Dec. 31, 2017
USD ($)
shares
CONDENSED CONSOLIDATED BALANCE SHEETS        
Allowance for doubtful accounts | $   $ 0   $ 0
Common stock, par value | £ / shares £ 0.001   £ 0.001  
Common stock, shares authorized   701,103,126   701,103,126
Common stock, shares issued   627,222,076   562,119,334
Common stock, shares outstanding   627,222,076   562,119,334