Summary of Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Schedule of Basic and Diluted Net Loss Per Share

The following tables show the computation of basic and diluted net income (loss) per share for the three and nine months ended September 30, 2021 and 2020, (common stock in thousands, except share and per share amounts):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2021			2020		2021			2020
Common Stock
Numerator:
Net (loss) income available to stockholders,    basic	$	(12,673	)	$	5,900	$	(32,954	)	$	(14,892	)
Effect of dilutive securities:
Redeemable stock options		—			411		—			—
Net (loss) income available to stockholders,    diluted	$	(12,673	)	$	6,311	$	(32,954	)	$	(14,892	)
Denominator:
Weighted-average shares outstanding,    basic		18,732,459			3,798,504		8,998,895			3,672,121
Effect of dilutive securities:
Redeemable stock options		—			1,757,399		—			—
Preferred stock warrants		—			15,890		—			—
Weighted-average shares, diluted		18,732,459			5,571,793		8,998,895			3,672,121
Basic net (loss) income per share	$	(0.68	)	$	1.55	$	(3.66	)	$	(4.06	)
Diluted net (loss) income per share	$	(0.68	)	$	1.13	$	(3.66	)	$	(4.06	)
Series G Common Stock
Numerator:
Net income (loss) available to stockholder, basic	$	—		$	0.01	$	—		$	(0.76	)
Effect of dilutive securities:
Redeemable preferred stock and warrants		—			—		—			—
Net income (loss) available to stockholder, diluted	$	—		$	0.01	$	—		$	(0.76	)
Denominator:
Weighted-average shares outstanding, basic and diluted					1					1
Basic net income (loss) per share		—		$	0.01		—		$	(0.76	)
Diluted net income (loss) per share		—		$	0.01		—		$	(0.76	)

Schedule of Dilutive Securities Excluded from Computation of Income (Loss) Per Share

The following outstanding potentially dilutive securities were excluded from the calculation of diluted net income (loss) per share attributable to common stockholders because their impact under the “treasury stock method” and “if-converted method” was anti-dilutive for the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Redeemable convertible preferred stock		—		14,849,188		—		14,849,188
Preferred stock warrants		—		—		—		227,762
Stock options		5,046,965		—		4,565,932		—
Redeemable stock options		—		1,803,687		—		3,905,753
Restricted stock units		232,805		—		78,455		—

Schedule of Revenue from Contracts with Customers

For the three and nine months ended September 30, 2021 and 2020, revenue from sales from contracts with customers consisted of the following (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
LDD (including training)	$	3,661	$	2,655	$	8,463	$	6,864
RxLAL		1,944		1,444		5,264		2,734
Service warranty, service contracts, and accessories		181		71		440		166
	$	5,786	$	4,170	$	14,167	$	9,764

Schedule of Deferred Revenue Activity

The following table represents the deferred revenue from sales activity for the nine months ended September 30, 2021 and 2020, respectively (in thousands):

	2021			2020
Balance at beginning of period	$	345		$	39
Consideration deferred during the period		506			303
Revenue recognized during the period		(402	)		(94	)
Balance at end of period	$	449		$	248

For the three months ended September 30, 2021, the Company had one customer who individually accounted for approximately 11% of revenue. For nine months ended September 30, 2021, the Company had no customer who individually accounted for more than 10% of revenue. For the three and nine months ended September 30, 2020 the Company had one customer who individually accounted for approximately 33% and 37% of revenue, respectively.