XML 38 R26.htm IDEA: XBRL DOCUMENT v3.21.1
Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2021
Intangible Assets  
Schedule of finite lived intangible assets

Weighted-

At March 31, 2021

Average

Gross

Amortization

Carrying

Accumulated

Net

(In thousands)

    

Period

Amount

Amortization

Amount

Patents

11 years

$

413

$

74

$

339

Defensive intangible assets

4 years

1,125

464

661

Customer accounts

2 years

 

125

 

70

 

55

Total amortizable intangible assets

1,663

608

1,055

Patents pending

628

628

Total intangible assets

$

2,291

$

608

$

1,683

Weighted-

At December 31, 2020

Average

Gross

Amortization

Carrying

Accumulated

Net

(In thousands)

    

Period

Amount

Amortization

Amount

Patents

11 years

$

413

$

65

$

348

Defensive intangible assets

4 years

1,125

421

704

Customer accounts

2 years

 

125

 

63

 

62

Total amortizable intangible assets

1,663

549

1,114

Patents pending

566

566

Total intangible assets

$

2,229

$

549

$

1,680

Schedule of future amortization expense

(In thousands)

2021 (April 1 - December 31)

$

177

2022

236

2023

 

205

2024

 

184

2025

 

94

Thereafter

 

159

Total

$

1,055