XML 33 R21.htm IDEA: XBRL DOCUMENT v3.22.1
Details of Certain Financial Statement Components (Tables)
12 Months Ended
Dec. 31, 2021
Details of Certain Financial Statement Components  
Schedule of inventories

December 31, 

December 31, 

    

2021

    

2020

Inventories

 

(in thousands)

Raw materials

 

$

447

 

$

520

Work-in-process

209

246

Finished goods

158

100

Total inventories

 

$

814

 

$

866

Schedule of property, plant and equipment, net

December 31, 

December 31, 

2021

2020

Property, plant and equipment, net

(in thousands)

Furniture, machinery and equipment

    

$

1,696

    

$

1,662

Leasehold improvements

 

444

 

538

 

2,140

 

2,200

Less: accumulated depreciation

 

(1,802)

 

(1,793)

Total property, plant and equipment, net

$

338

$

407

Schedule of intangible assets, net

December 31, 

December 31, 

2021

2020

Intangible assets, net

(in thousands)

Patents and trademarks

    

$

658

    

$

658

Less: accumulated amortization

 

(527)

 

(463)

Total intangibles, net

$

131

$

195

Schedule of future amortization on existing intangibles

Years ending December 31,

    

(in thousands)

2022

$

55

2023

 

42

2024

 

27

2025

 

7

2026

Thereafter

 

$

131

Schedule of accrued liabilities

December 31, 

December 31, 

2021

2020

Accrued liabilities

(in thousands)

Accrued warranty

    

$

3

    

$

7

Accrued wages and benefits

 

402

 

180

Accrued vacation

 

82

 

110

Accrued other

 

20

 

20

Total accrued liabilities

$

507

$

343