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Note 7 - Debt and Other Financing Arrangements (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]

2021

 $173 

2022

  664 

2023

  294 

2024

  305 

Long-term debt from equipment financing

  1,436 

Less: Current portion of long-term debt

  (696)

Total long-term debt, net of current portion

 $740