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Stockholders Equity (Tables)
9 Months Ended
Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Stock-based Compensation Expense Included in Operating Expense

Stock-based compensation expense was included in the following operating expense categories as follows (in thousands):

 

 

Nine Months Ended
September 30,

 

 

Three Months Ended
September 30,

 

 

 

2022

 

 

2023

 

 

2022

 

 

2023

 

Service costs

 

$

125

 

 

$

-

 

 

$

46

 

 

$

-

 

Sales and marketing

 

 

596

 

 

 

580

 

 

 

205

 

 

 

89

 

Product development

 

 

216

 

 

 

94

 

 

 

58

 

 

 

(39

)

General and administrative

 

 

1,097

 

 

 

1,233

 

 

 

316

 

 

 

357

 

Total stock-based compensation

 

$

2,034

 

 

$

1,907

 

 

$

625

 

 

$

407

 

Assumptions to Estimate Fair Value for Stock Options at Grant Date

The following weighted average assumptions were used in determining the fair value of time-vested stock option grants for the periods presented:

 

 

Nine Months Ended September 30,

 

Three Months Ended September 30,

 

 

2022

 

2023

 

2022

 

2023

Expected life (in years)

 

4.0 - 6.25

 

4.0 - 6.25

 

4.0 - 6.25

 

4.0 - 6.25

Risk-free interest rate

 

2.41%-4.30%

 

3.58%-4.70%

 

4.18%-4.30%

 

4.61%-4.70%

Expected volatility

 

51%-63%

 

53%-64%

 

52%-63%

 

56%-64%

Summary of Stock Option Activity

Stock option activity during the nine months ended September 30, 2023 is summarized as follows:

 

 

Shares
(in thousands)

 

 

Weighted average
exercise price

 

 

Weighted average
remaining
contractual term
(in years)

 

Balance at December 31, 2022

 

 

3,766

 

 

$

3.14

 

 

 

6.67

 

Options granted

 

 

2,975

 

 

 

1.70

 

 

 

 

Options forfeited

 

 

(471

)

 

 

2.49

 

 

 

 

Options expired

 

 

(680

)

 

 

3.99

 

 

 

 

Balance at September 30, 2023

 

 

5,590

 

 

$

2.33

 

 

 

7.10

 

Summary of Restricted Stock Awards and Restricted Stock Units

Restricted stock awards and restricted stock unit activity during the nine months ended September 30, 2023 is summarized as follows:

 

 

Shares/
Units
(in thousands)

 

 

Weighted average
grant date
fair value

 

Unvested balance at December 31, 2022

 

 

1,640

 

 

$

2.53

 

Granted

 

 

325

 

 

 

1.84

 

Vested

 

 

(503

)

 

 

2.36

 

Forfeited

 

 

(343

)

 

 

2.59

 

Unvested balance at September 30, 2023

 

 

1,119

 

 

$

2.40