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Note 16 - Merom Acquisition (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Asset Acquisition [Table Text Block]

Consideration:

    (in thousands)  

Direct transaction costs

  $ 2,855  

Contract liability - PPA

    184,500  

Contract liability - Capacity payment reduction

    11,000  

Contract asset - Coal purchase agreement

    (34,300 )

Coal inventory purchased

    5,400  

Deferred coal inventory payment

    11,600  

Total consideration

  $ 181,055  

Relative fair value of assets acquired:

       

Plant

  $ 165,816  

Materials and supplies

    12,009  

Coal inventory

    10,460  

Amount attributable to assets acquired

  $ 188,285  

Fair value of liabilities assumed:

       

Asset retirement obligations

  $ 7,230  

Amount attributable to liabilities assumed

  $ 7,230