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Details of Certain Financial Statement Components (Tables)
12 Months Ended
Dec. 31, 2022
Details of Certain Financial Statement Components  
Schedule of inventories

December 31, 

December 31, 

    

2022

    

2021

Inventories

 

(in thousands)

Raw materials

 

$

1,632

 

$

447

Work-in-process

192

209

Finished goods

285

158

Total inventories

 

$

2,112

 

$

814

Schedule of property, plant and equipment, net

December 31, 

December 31, 

    

2022

    

2021

Property, plant and equipment, net

(in thousands)

Furniture, machinery and equipment

$

1,688

$

1,696

Leasehold improvements

 

417

 

444

 

2,105

 

2,140

Less: accumulated depreciation

 

(1,921)

 

(1,802)

Total property, plant and equipment, net

$

184

$

338

Schedule of intangible assets, net

December 31, 

December 31, 

    

2022

    

2021

Intangible assets, net

(in thousands)

Patents and trademarks

$

658

$

658

Less: accumulated amortization

 

(582)

 

(527)

Total intangibles, net

$

76

$

131

Schedule of future amortization on existing intangibles

Years ending December 31,

    

(in thousands)

2023

$

42

2024

 

27

2025

 

7

2026

2027

Thereafter

 

$

76

Schedule of accrued liabilities