Equity Incentive Plan (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Schedule of Additional Information on Stock Option Grants And Vesting

The following table summarizes additional information on stock option grants and vesting (in thousands):

	2019 Plan
	Nine Months Ended September 30, 2021		Nine Months Ended September 30, 2020
Total fair value of stock options granted	$	2,293	$	9,241
Total fair value of options vested		369		—

The following table summarizes additional information on stock option grants and vesting (in thousands):

	2016 Plan				2019 Plan
	Year Ended December 31, 2020		Year Ended December 31, 2019		Year Ended December 31, 2020		Year Ended December 31, 2019
Total fair value of stock options granted	$	—	$	2,492	$	9,241	$	974
Total fair value of options vested		—		1,439		2,711		—

Schedule of Black Scholes model for the Private Warrants

To estimate the fair value of the Private Warrants as of December 31, 2020 and September 30, 2021, the Company used a Black Scholes closed form model, which is a Level 3 fair value measurement. Significant inputs used in the Black Scholes model for the Private Warrants were as follows:

	December 31, 2020 & September 30, 2021
Expected volatility		16.00	%
Expected term (in years)		3.97
Risk free interest rate		1.74	%
Dividend yield		0.00	%
Exercise Price	$	11.50
Fair value of Common Stock	$	8.05

The following table summarizes the assumptions used in the valuation models to determine the fair value of awards granted to employees and non-employees under both the 2019 Plan and the 2016 Plan:

	Year Ended December 31, 2020	Year Ended December 31, 2019
Expected volatility	37.63 - 41.24%	36.92 - 37.70%
Expected term (in years)	6.0	6 - 6.5
Dividend yield	0%	0%
Risk free interest rate	0.30 - 1.43%	1.79 - 2.89%

Stock Based Compensation Expense Included In Condensed Consolidated Statements of Comprehensive Loss

Stock-based compensation expense is included in the Company’s Condensed Consolidated Statements of Comprehensive Loss within the following line items (in thousands):

	Three Months Ended September 30, 2021		Three Months Ended September 30, 2020		Nine Months Ended September 30, 2021		Nine Months Ended September 30, 2020
Cost of revenues	$	340	$	339	$	1,030	$	1,020
General and administrative		394		350		1,200		841
Research and development		73		65		209		205
Sales and marketing		195		159		559		486
Total	$	1,002	$	913	$	2,998	$	2,552

Stock-based compensation expense is included in the Consolidated Statements of Comprehensive Loss within the following line items (in thousands):

	December 31,
	2020		2019
Cost of revenues	$	1,336	$	573
General and administrative		1,198		1,161
Research and development		268		87
Sales and marketing		633		444
Total	$	3,435	$	2,265

Restricted Stock Units [Member]

Schedule of RSUs Activity Under 2019 Plan

The following table summarizes the Company’s RSU activity:

Description	RSUs Outstanding
Balance at December 31, 2020		1,290,432
Granted		434,538
Vested		(103,622	)
Forfeited		(97,835	)
Expired		—
Balance at September 30, 2021		1,523,513

The following table summarizes the Company’s RSU activity under the 2019 Plan:

Description	RSUs Outstanding
Outstanding at December 31, 2019		—
Granted		1,402,312
Forfeited		(111,880	)
Expired		—
Outstanding at December 31, 2020		1,290,432

Stock Option Valuation [Member]

Schedule of Black Scholes model for the Private Warrants

The following table summarizes the assumptions used in the valuation models to determine the fair value of stock options granted to employees and non-employee directors:

	Nine Months Ended September 30, 2021	Nine Months Ended September 30, 2020
Expected volatility	44.06% - 44.61%	37.63% - 41.24%
Expected term (in years)	6.0	6.0
Dividend yield	0.00%	0.00%
Risk-free interest rate	0.70% - 1.00%	1.43% - 0.30%

2019 Plan [Member]

Schedule of Stock Option Activity Under 2019 Plan

The following table summarizes the Company’s stock option activity under the 2019 Plan:

Description	Options Outstanding			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (1)
Options Outstanding, December 31, 2020		4,260,753		$	8.46		9.0	$	54
Granted		1,277,771			8.03
Exercised		(4,676	)		8.00
Forfeited		(350,928	)		8.27
Expired		(56,517	)		8.12
Options Outstanding, September 30, 2021		5,126,403		$	8.37		8.6	$	5
Options Vested and Exercisable, September 30, 2021		1,352,295		$	8.46		8.3	$	—
Options Vested and Expected to Vest, September 30, 2021		5,126,403		$	8.37		8.6	$	5

(1) Aggregate intrinsic value represents the difference between the estimated fair value of the underlying Common Stock and the exercise price of outstanding in-the-money options.

The following table summarizes the Company’s stock option activity under the 2019 Plan:

Description	Options Outstanding			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (1)
Options outstanding, December 31, 2018		—
Granted		514,710		$	9.90		10.0
Forfeited		—
Expired		—
Options outstanding, December 31, 2019		514,710		$	9.90		10.0
Granted		4,137,750			8.49
Forfeited		(387,186	)		8.85
Expired		(4,521	)		8.85
Options outstanding, December 31, 2020		4,260,753		$	8.46		9.0	$	54
Options vested and exercisable, December 31, 2020		1,204,863		$	8.20		9.0	$	54
Options vested and expected to vest, December 31, 2020		4,260,753		$	8.46		9.0	$	54

2016 Plan [Member]

Schedule of Stock Option Activity Under 2019 Plan

The following table summarizes the Company’s stock option activity under the 2016 Plan:

Description	Options Outstanding			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (1)
Options Outstanding, December 31, 2018		411,480		$	100		8.3	$	—
Granted		67,050			90
Forfeited		(32,860	)		99
Expired		(8,640	)		99
Cancelled		(437,030	)		100
Options Outstanding, December 31, 2019		—						$	—

(1) Aggregate intrinsic value (in thousands) represents the difference between the estimated fair value of the underlying common stock and the exercise price of outstanding, in-the-money options.