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Note 7 - Supplemental Disclosures of Cash Flow Information (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
  Three Months Ended 
  March 31,  
  

2021

  

2020

 
  

(In thousands)

 

Cash payments for:

        

Interest

 $317  $459 

Taxes (net of refunds received)

  -   -