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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Summary of Weighted Average Valuation Assumptions Used for Options Following are the weighted average valuation assumptions used for options:

 

 

 

Three Months Ended March 31,

 

 

 

2021

 

 

2020

 

Valuation assumptions

 

 

 

 

 

 

 

 

Expected dividend yield

 

 

%

 

 

%

Expected volatility

 

 

59

%

 

 

60

%

Expected term (years)

 

 

4.67

 

 

 

4.49

 

Risk-free interest rate

 

 

0.67

%

 

 

1.44

%

 

Summary of Classification of Stock Based Compensation Expense

The following table presents classification of stock-based compensation expense within the condensed consolidated statements of operations:

 

 

 

Three Months Ended March 31,

 

 

 

2021

 

 

2020

 

Cost of sales

 

$

657

 

 

$

253

 

Research and development

 

 

1,228

 

 

 

508

 

Sales and marketing

 

 

218

 

 

 

93

 

General and administrative

 

 

2,263

 

 

 

921

 

Total stock-based compensation

 

$

4,366

 

 

$

1,775