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Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2024
Schedule of allocation of total stock-based compensation expense

Three Months Ended

Nine Months Ended

September 30, 

September 30, 

(In thousands)

    

2024

    

2023

    

2024

    

2023

Cost of revenue

$

100

$

116

$

286

$

340

Sales and marketing expenses

595

634

1,939

2,196

Research and development expenses

42

5

123

98

Reimbursement, general and administrative expenses

1,333

1,011

3,621

2,963

Total stock-based compensation expense

$

2,070

$

1,766

$

5,969

$

5,597

Schedule of stock option activity

    

Weighted-

Weighted-

Average

Average

Aggregate

Options

Exercise Price

Remaining

Intrinsic

(In thousands except options and per share data)

Outstanding

Per Share (1)

Contractual Life

Value (2)

Balance at December 31, 2023

429,960

$

40.74

3.8 years

$

223

Exercised

(1,153)

$

1.35

$

14

Cancelled/Expired

(24,142)

$

43.45

Balance at September 30, 2024

404,665

$

40.69

3.1 years

$

218

Options exercisable at September 30, 2024

385,514

$

42.11

3.0 years

$

116

(1)The exercise price of each option granted during the period shown was equal to the market price of the underlying stock on the date of grant.
(2)The aggregate intrinsic value of options exercised represents the difference between the exercise price of the option and the closing stock price of our common stock on the date of exercise. The aggregate intrinsic value of options outstanding represents the difference between the exercise price of the option and the closing stock price of our common stock on the last trading day of the period.
Time-Based Restricted Stock Units  
Schedule of stock-settled restricted stock unit activity

Weighted-

    

    

Average Grant

    

Aggregate

Units

Date Fair Value

Intrinsic

(In thousands except unit and per unit data)

Outstanding

Per Unit

Value (1)

Balance at December 31, 2023

589,142

$

16.35

$

8,425

Granted

539,496

$

13.82

Vested

(254,490)

$

17.44

Cancelled

(113,724)

$

14.70

Balance at September 30, 2024

760,424

$

14.44

$

11,110

(1)The aggregate intrinsic value of restricted stock units outstanding was based on our closing stock price on the last trading day of the period.
Performance-based stock-settled restricted stock units  
Schedule of stock-settled restricted stock unit activity

Weighted-

    

    

Average Grant

    

Aggregate

PSUs

Date Fair Value

Intrinsic

(In thousands except unit and per unit data)

Outstanding

Per Unit

Value (1)

Balance at December 31, 2023

198,232

$

18.93

$

2,785

Granted

223,762

$

13.76

Vested

(44,162)

$

27.31

Cancelled

(104,913)

$

14.14

Balance at September 30, 2024

272,919

$

15.19

$

3,987

(1)The aggregate intrinsic value of PSUs outstanding was based on our closing stock price on the last trading day of the period.