Earnings (Loss) per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings (Loss) per Share

Schedule of basic and diluted loss per share

	Year ended December 31,
(in thousands, except per share data)	2021		2020		2019
Net loss for the period	$	(49,450)	$	(69,484)	$	(82,764)
Weighted average number of shares outstanding		43,349,461		12,845,089		7,419,948
Basic and diluted loss per share	$	(1.14)	$	(5.41)	$	(11.15)

Schedule of ordinary share equivalents excluded from the calculations of diluted loss per share

	Year ended December 31
	2021	2020	2019
Stock option awards	1,348,477	1,052,838	816,891
Restricted share units	789,738	239,384	105,169
Warrants	10,619,347	5,438,842	1,379,310