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Details of Certain Financial Statement Components (Tables)
6 Months Ended
Jun. 30, 2022
Details of Certain Financial Statement Components  
Schedule of inventories

June 30, 

December 31, 

    

2022

    

2021

Inventories

 

(in thousands)

Raw materials

 

$

672

 

$

447

Work-in-process

164

209

Finished goods

172

159

Total inventories

 

$

1,008

 

$

814

Schedule of property, plant and equipment, net

June 30, 

December 31, 

    

2022

    

2021

Property, plant and equipment, net

(in thousands)

Furniture, machinery and equipment

$

1,678

$

1,696

Leasehold improvements

 

428

 

444

 

2,106

 

2,140

Less: accumulated depreciation

 

(1,861)

 

(1,802)

Total property, plant and equipment, net

$

245

$

338

Schedule of intangible assets, net

June 30, 

December 31, 

    

2022

    

2021

Intangible assets, net

(in thousands)

Patents and trademarks

$

658

$

658

Less: accumulated amortization

 

(556)

 

(527)

Total intangible assets, net

$

102

$

131

Schedule of future amortization on existing intangibles

Years ending December 31,

    

(in thousands)

2022 (remainder of year)

$

26

2023

 

42

2024

 

27

2025

 

7

$

102

Schedule of accrued liabilities

June 30, 

December 31, 

    

2022

    

2021

Accrued liabilities

(in thousands)

Accrued compensation and benefits

$

172

$

402

Accrued vacation

 

94

 

82

Other accrued liabilities

 

23

 

23

Total accrued liabilities

$

289

$

507