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Stock-Based Compensation
9 Months Ended
Sep. 30, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Stock-Based Compensation

Note 11. Stock-Based Compensation

 

A summary of the activity and related data by award type under the 2018 Equity Incentive Plan and the 2020 Inducement Equity Incentive Plan (collectively, the “Plans”) for the nine months ended September 30, 2022 is set forth below:

 

Stock Options

 

 

 

Stock

Options

 

 

Weighted

Average

Exercise

Price

 

 

Weighted

Average

Remaining

Life

(in years)

 

 

Aggregate

Intrinsic

Value

(in thousands)

 

Outstanding at December 31, 2021

 

 

2,168

 

 

$

17,277

 

 

 

 

 

 

 

 

 

Canceled/forfeited

 

 

(741

)

 

$

19,266

 

 

 

 

 

 

 

 

 

Outstanding at September 30, 2022

 

 

1,427

 

 

$

16,244

 

 

 

4.07

 

 

$

 

Exercisable at September 30, 2022

 

 

1,251

 

 

$

18,342

 

 

 

3.60

 

 

$

 

Vested and expected to vest at September 30, 2022

 

 

1,427

 

 

$

16,244

 

 

 

4.07

 

 

$

 

 

Restricted Stock Units

 

 

 

Restricted

Stock Units

 

 

Weighted

Average

Grant Date

Fair Value

 

Outstanding at December 31, 2021

 

 

1,400

 

 

$

219

 

Vested

 

 

(117

)

 

$

609

 

Canceled/forfeited

 

 

(1,208

)

 

$

168

 

Outstanding at September 30, 2022

 

 

75

 

 

$

416

 

 

 

Restricted Stock Awards

 

 

 

Restricted Stock

Awards

 

 

Weighted

Average

Grant Date

Fair Value

 

Outstanding at December 31, 2021

 

 

3,586

 

 

$

236

 

Vested

 

 

(1,266

)

 

$

239

 

Canceled/forfeited

 

 

(966

)

 

$

211

 

Outstanding at September 30, 2022

 

 

1,354

 

 

$

249

 

The following table summarizes stock-based compensation expense for the Plans included in operating expenses for the periods presented (in thousands):

 

 

Three Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

2022

 

 

2021

 

 

2022

 

 

2021

 

Selling, general and administrative

$

85

 

 

$

78

 

 

$

302

 

 

$

1,551

 

Research and development

 

(11

)

 

 

27

 

 

 

57

 

 

 

251

 

Stock-based compensation in operating expenses

$

74

 

 

$

105

 

 

$

359

 

 

$

1,802

 

 

Stock-based compensation expense of nil and approximately $5,000 was capitalized to inventory and property and equipment during the three months ended September 30, 2022 and 2021, respectively. Stock-based compensation expense of approximately $6,000 and $0.1 million was capitalized to inventory and property and equipment during the nine months ended September 30, 2022 and 2021, respectively.

Unrecognized stock-based compensation expense by award type and the remaining weighted average recognition period over which such expense is expected to be recognized as of September 30, 2022 was as follows:

 

 

 

Unrecognized Expense (in thousands)

 

 

Remaining Weighted Average Recognition Period (in years)

 

Stock options

 

$

122

 

 

 

1.3

 

Restricted stock awards

 

$

233

 

 

 

1.4

 

Restricted stock units

 

$

20

 

 

 

1.2