Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Shares Available for Issuance Under 2020 Plan

A summary of the shares available for issuance under the 2020 Plan is as follows:

	Number of Shares
Balances, December 31, 2020		1,188
Authorized		547
Granted/Awarded		(292	)
Cancelled		2
Balances, March 31, 2021		1,445

Summary of Option Award Activity

Option award activity under the 2020 Plan is set forth below:

	Options Outstanding
	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (In Years)		Aggregate Intrinsic Value
Outstanding at December 31, 2020		—		$	—		—	$	—
Options granted		292		$	7.97
Options exercised		—		$	—
Options cancelled		(2	)	$	8.27
Outstanding at March 31, 2021		290		$	7.97		9.9	$	15
Vested and expected to vest at March 31, 2021		290		$	7.97		9.9	$	15
Vested and exercisable at March 31, 2021		8		$	8.27		9.7	$	—

Summary of Fair Value of Employee and Non-Employee Stock Options was Estimated Using Assumptions

The Company estimated the fair value of stock-options using the Black-Scholes option pricing model. The fair value of employee and non-employee stock options is being amortized on a straight-line basis over the requisite service period of the awards. The fair value of employee and non-employee stock options was estimated using the following assumptions for the three months ended March 31, 2021:

	Three Months Ended March 31,
	2021
Risk-free interest rate	0.6 - 1.1%
Expected term (years)	6
Expected volatility	72 - 73%
Dividends	0.0%

Summary of Restricted Stock Award Activity

Restricted stock award activity under the 2020 Plan is set forth below:

	Restricted Stock Awards Outstanding
	Number of Units			Weighted Average Grant Date Fair Value Per Share
Non-vested at December 31, 2020		2,050		$	10.30
Restricted stock awards granted		—		$	—
Restricted stock awards vested		(342	)	$	10.44
Restricted stock awards cancelled		—		$	—
Non-vested at March 31, 2021		1,708		$	10.27

Summary of Total Stock-Based Compensation Expense Recognized

The following table sets forth the total stock-based compensation expense recognized under the 2020 Plan, the 2020 ESPP and the Phantom Stock Plan in the Company’s condensed statements of operations:

	Three Months Ended March 31,
	2021		2020
Cost of revenue – product	$	75	$	—
Cost of revenue – service		41		—
Selling, general and administrative expenses		1,984		47
Research and development expenses		220		—
Total	$	2,320	$	47

Summary of Unrecognized Stock-based Compensation Expense Expected to be Amortized

Total unrecognized stock-based compensation expense is expected to be amortized as follows:

Fiscal Year	Amount
Remainder of 2021	$	3,835
2022		5,089
2023		3,250
2024		205
2025		28
Thereafter		—
Total unrecognized stock-based compensation expense		12,407