XML 22 R12.htm IDEA: XBRL DOCUMENT v3.21.2
Note 5 - Inventory
9 Months Ended
Sep. 30, 2021
Notes to Financial Statements  
Inventory Disclosure [Text Block]

5. Inventory

 

Inventory consisted of the following (in thousands):

 

   

September 30, 2021

   

December 31, 2020

 
                 

Finished goods

  $ 219     $ 2  

Work in process

    26       247  

Raw materials

    88       842  

Total inventory

  $ 333     $ 1,091