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Note 5 - Leasing Arrangements (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Lease, Cost [Table Text Block]
    Years ended December 31,  
    2022     2021  
                 
Lease expense                

Operating lease cost

  $ 844     $ 830  

Variable lease cost

    -       -  

Sublease income

    -       (45

)

Total operating lease cost

  $ 844     $ 785  
                 

Operating Lease – operating cash flows

  $ (806 )  

$

(754

)

New right-of-use assets – operating leases

    -       5,364  
   

2022

   

2021

 

Weighted average remaining lease term – operating leases (months)

    75       81  

Weighted average discount rate – operating leases

    6 %     5 %
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
   

Fiscal

Year

 

2023

  $ 700  

2024

    881  

2025

    907  

2026

    934  

Thereafter

    2,202  

Total minimum future lease payments

    5,624  

Less imputed interest

    (848

)

Total

  $ 4,776  
         

Reported as of December 31, 2022:

       

Current portion of lease liability

  $ 467  

Non-current portion of lease liability

    4,309  
    $ 4,776