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Note 2 - Investment in MRINetwork Operations (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Divestures [Table Text Block]

Fair value of equity investment received

 $635 

Less: carrying value of net assets derecognized

  (195)

Less: adjustment for expected formation funding

  (192)

Net gain

 $248 
Equity Method Investments [Table Text Block]

Initial investment

 $635 

Equity in net loss

  - 

Investment in unconsolidated affiliate, June 30, 2026

 $635