Unaudited Selected Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2019

Unaudited Selected Quarterly Financial Data [Abstract]

Schedule of Unaudited Quarterly Financial Data



	Fiscal 2019 Quarter Ended
(in thousands, except per share data)	March 31,		June 30,		September 30,		December 31,
Total revenue	$	16,425	$	24,621	$	21,915	$	27,930
Total gross profit		5,117		9,613		6,914		12,932
Total operating expenses		35,251		33,993		35,028		30,849
Loss from operations		(30,134)		(24,380)		(28,114)		(17,917)
Gain from Continuation Advances (1)		—		—		—		18,000
Net loss		(30,324)		(24,596)		(29,123)		(91)
Basic and diluted net loss per share	$	(0.20)	$	(0.16)	$	(0.19)	$	(0.0)
Weighted average shares used in computing net loss per share		151,274		152,776		152,983		153,051

	Fiscal 2018 Quarter Ended
(in thousands, except per share data)	March 31,		June 30,		September 30,		December 31,
Total revenue	$	19,362	$	21,578	$	18,160	$	19,526
Total gross profit		7,296		8,862		3,192		5,746
Total operating expenses		31,245		30,607		27,862		36,369
Loss from operations		(23,949)		(21,745)		(24,670)		(30,623)
Net loss		(24,179)		(22,540)		(25,044)		(30,799)
Basic and diluted net loss per share	$	(0.20)	$	(0.17)	$	(0.19)	$	(0.21)
Weighted average shares used in computing net loss per share		123,768		131,882		135,130		149,314

(1) In accordance with the terms of the Merger Agreement, during the fourth quarter of 2019 we received Continuation Advances totaling $18.0 million from Illumina. Please see “Note 2 Termination of Merger with Illumina” for additional information.