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Note 2 - Leases (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Lease, Cost [Table Text Block]
   

December 31,

 
   

2022

   

2021

 
Finance lease expense                

Amortization expense

  $ 677     $ 422  

Interest expense

    338       230  

Operating lease expense

    1,402       1,406  

Variable lease expense

    337       315  

Total lease expense

  $ 2,754     $ 2,373  
Supplemental Cash Flow Information Related to Leases [Table Text Block]
   

December 31,

 
   

2022

   

2021

 
Cash paid for amounts included in the measurement of lease liabilities:                

Operating cash flows from operating leases

  $ 1,713     $ 1,532  

Operating cash flows from finance leases

    338       230  

Financing cash flows from finance leases

    982       499  
Lessee, Operating and Finance Lease, Liability, Maturity [Table Text Block]
   

Operating

   

Finance

 
   

Leases

   

Leases

 

Next 12 months

  $ 1,509     $ 1,369  

12 to 24 months

    1,317       1,293  

24 to 36 months

    1,231       1,259  

36 to 48 months

    859       256  

48 to 60 months

    842       0  

Thereafter

    0       0  

Total lease payments

    5,758       4,177  

Less imputed interest

    (880

)

    (539

)

Total

  $ 4,878     $ 3,638  
Lease Terms and Discount Rates for Leases [Table Text Block]
   

December 31,

 
   

2022

   

2021

 
Weighted-average remaining lease term (years):                

Operating leases

    4.4       5.3  

Finance leases

    3.0       4.0  
                 
Weighted-average discount rate (percentage):                

Operating leases

    8.0       8.0  

Finance leases

    8.5       8.5