v3.22.2.2
Note 4 - Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
  

March 31, 2022

  

December 31, 2021

 

Customer relationships

 $626  $626 

Patents and trademarks

  441   441 

Total intangible assets

  1,067   1,067 

Accumulated amortization

  (722)  (668)

Net carrying value

 $345  $399 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
  

2023

  

2024

  

2025

  

2026

  

2027

 

Customer relationships

 $125  $73  $-  $-  $- 

Patents and trademarks

  93   54   -   -   - 

Total intangible asset amortization expense

 $218  $127  $-  $-  $-