Basic and diluted earnings per share (Tables)

6 Months Ended

Jun. 30, 2020

Basic and diluted earnings per share

Schedule of potential dilutive common shares

	June 30,
	2020	2019
	(ordinary shares)
BMS warrants	8,060,500	8,435,000
Stock options under 2014 Plans	2,879,733	2,943,756
Non-vested RSUs and earned PSUs	645,636	842,859
Stock options under previous option plan	14,000	14,000
Employee share purchase plan	254	596
Total potential dilutive ordinary shares	11,600,123	12,236,211