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Note 10 - Leases (Tables)
3 Months Ended
Mar. 31, 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