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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

Life

  

December 31,

 
  

(in years)

  

2021

  

2020

 

Medical equipment

  5  $2,628  $3,111 

Rental equipment

  5   1,118   1,812 

Computer equipment

  3   157   242 

Leasehold Improvements

  3   122   122 

Furniture and fixtures

  7   244   386 

Software

  3   35   25 
       4,304   5,698 

Less: Accumulated depreciation and amortization

      (2,750)  (2,939)

Property and equipment, net

     $1,554  $2,759