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Note 5 - Operating Lease Right-of-use Asset, Net (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
  

Operating Lease

June 30, 2021

 

Remainder of 2021

    

Total undiscounted lease payments

 $324 

Less imputed interest

  8 

Total operating lease liabilities

 $316