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Note 6 - Leases, Right-to-use Assets and Related Liabilities (Tables)
6 Months Ended
Dec. 31, 2020
Notes Tables  
Lessee, Lease Liability, Maturity [Table Text Block]
   
Operating
   
Finance
 
2021 (remaining 6 months)
  $
37,000
    $
61,000
 
2022
   
18,000
     
124,000
 
2023
   
-
     
127,000
 
2024
   
-
     
35,000
 
2025
   
-
     
3,000
 
Total lease payments
   
55,000
     
350,000
 
Less: Imputed interest
   
 
     
(39,000
)
Lease liabilities
   
 
    $
311,000