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Note 5 - Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

2022

   

2021

 
                 

Land

  $ 2,220     $ 2,220  

Buildings and improvements

    12,530       12,477  

Machinery and equipment

    7,810       6,879  

Construction in progress

    12       127  

Totals at cost

    22,572       21,703  
                 

Less: accumulated depreciation

    (9,976 )     (9,441 )

Property, plant and equipment, net

  $ 12,596     $ 12,261