Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2019

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited)

18.         SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

Selected quarterly financial results from operations for the years ended December 31, 2019 and 2018 are as follows (in thousands, except per share amounts):

	2019 Quarter Ended
	March 31		June 30		September 30		December 31
Total revenue	$	—	$	18	$	3,013	$	2,250
Gross profit	$	—	$	18	$	2,413	$	2,250
Operating expenses	$	25,498	$	24,846	$	24,502	$	21,098
Net loss	$	(26,144)	$	(25,467)	$	(23,539)	$	(19,790)
Net loss per share - basic and diluted	$	(0.42)	$	(0.41)	$	(0.37)	$	(0.27)

	2018 Quarter Ended
	March 31		June 30		September 30		December 31
Total revenue	$	2,320	$	30	$	172	$	85
Gross profit	$	1,856	$	30	$	170	$	85
Operating expenses	$	19,541	$	22,184	$	23,902	$	27,461
Net loss	$	(17,019)	$	(22,291)	$	(24,126)	$	(27,862)
Net loss per share - basic and diluted	$	(0.36)	$	(0.42)	$	(0.39)	$	(0.45)