March 31, 2023 (unaudited)

December 31, 2022

Weighted average amortization period (years)

Gross carrying amount

Accumulated amortization

Impairment (*)

Net

Gross carrying amount

Accumulated amortization

Impairment (*)

Net

Intangible assets –amortizable:

Intangible assets related to the acquisition of Intrinsix business

Customer relationships

5.5

$

3,604

$

1,201

$

—

$

2,403

$

3,604

$

1,037

$

—

$

2,567

Customer backlog

1.5

421

—

421

—

Patents

5.0

218

80

—

138

218

69

—

149

Core technologies

3.0

3,329

2,035

—

1,294

3,329

1,757

—

1,572

Intangible assets related to the acquisition of Hillcrest Labs business

Customer relationships

4.4

$

3,518

$

3,070

$

—

$

448

$

3,518

$

2,998

$

—

$

520

Customer backlog

0.5

72

—

72

—

R&D Tools

7.5

2,475

1,222

—

1,253

2,475

1,140

—

1,335

Intangible assets related to Immervision assets acquisition

R&D Tools

6.4

$

7,063

$

3,507

$

3,556

$

—

$

7,063

$

3,507

$

3,556

$

—

Intangible assets related to an investment in NB-IoT technologies

NB-IoT technologies (**)

7.0

$

1,961

$

1,494

$

—

$

467

$

1,961

$

1,424

$

—

$

537

Total intangible assets

$

22,661

$

13,102

$

3,556

$

6,003

$

22,661

$

12,425

$

3,556

$

6,680