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Note 13 - Leases (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Lessee, Operating Lease, Assets and Liabilities [Table Text Block]
Assets
 
As of
September 30,
2020
 
Operating lease right-of-use assets
  $
1,457,000
 
Accumulated amortization
   
(1,097,000
)
Net lease assets
  $
360,000
 
         
Liabilities
 
 
 
 
Current
       
Operating
   
312,000
 
Noncurrent
       
Operating
   
48,000
 
Total lease liabilities
  $
360,000
 
         
Weighted average remaining term (years) – operating leases (in years)
   
2
 
         
Weighted average discount rate – operating leases
   
11.25
%
Lease, Cost [Table Text Block]
Operating right-of-use lease asset amortization
  $
471,000
 
         
Total expense during nine months ended September 30, 2020
  $
471,000
 
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
(in thousands)
       
2020
  $
111
 
2021
   
373
 
2022 and thereafter
   
51
 
Total lease payments
   
535
 
less: Imputed interest
   
(175
)
Present value of lease liabilities
  $
360