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Note 10 - Leases (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block]
   

Operating

Lease

 

Remainder 2021

  $ 67  

2022

    118  

2023

    122  

2024

    127  

2025

    65  

Total minimum lease receipts

  $ 499