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Note 6 - Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

December 31,

 
  

2022

  

2021

 
  

(000's)

 

Equipment

 $5,137  $5,351 

Furniture and fixtures

  22   22 

Leasehold improvements

  1,612   1,531 

Software

  364   365 

Total property and equipment–at cost

  7,135   7,269 

Less: Accumulated depreciation and amortization

  (5,568)  (5,026)

Property and equipment, net

 $1,567  $2,243