Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information (Unaudited)

Schedule of quarterly financial information

The following table summarizes our unaudited quarterly financial information for the periods shown below (in thousands, except per share data):

	Fiscal Year 2021
	December 31,		September 30,		June 30,		March 31,
Revenue	$	3,314	$	3,019	$	2,917	$	3,915
Gross profit		209		583		579		1,080
Net loss		(11,493)		(10,488)		(9,245)		(9,151)
Net loss per share, basic and diluted		(0.17)		(0.17)		(0.15)		(0.17)
Net loss attributable to common stockholders		(11,493)		(10,488)		(9,245)		(9,151)

*Refer to Note 2 concerning the restatements of 2021 quarterly amounts for the three months ended March 31, 2021, June 30,2021 and September 30, 2021 in previously filed Form 10-Q for those periods.

	Fiscal Year 2020
	December 31,		September 30,		June 30,		March 31,
Revenue	$	4,233	$	2,779	$	3,037	$	1,532
Gross profit		703		348		796		81
Net loss		(3,590)		(4,761)		(4,239)		(5,362)
Net loss per share, basic and diluted		(0.09)		(0.13)		(0.13)		(0.18)
Net loss attributable to common stockholders		(4,120)		(5,281)		(4,746)		(5,861)
	Fiscal Year 2019
	December 31,		September 30,		June 30,		March 31,
Revenue	$	1,953	$	1,159	$	2,186	$	1,373
Gross profit (loss)		(4,369)		(231)		152		40
Net loss		(9,583)		(5,477)		(5,056)		(6,360)
Net loss per share, basic and diluted		(0.31)		(0.18)		(0.20)		(0.25)
Net loss attributable to common stockholders		(10,081)		(5,967)		(5,534)		(6,826)