v3.26.1
Note 4 - Accounts Receivable (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
  June 30, 2026  December 31, 2025 

Trade accounts receivable

 $  $6 

Allowance for credit losses

      

Accounts receivable

 $  $6