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Note 13 - Leases (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
   
March 31,
 
   
2020
 
Remainder of 2020
   
820,000
 
2021
   
1,000,000
 
2022
   
670,000
 
2023
   
676,000
 
Thereafter
   
126,000
 
Total future minimum lease payments
   
3,292,000
 
Less imputed interest
   
(293,000
)
Total lease liabilities
  $
2,999,000