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Note 12 - Leases (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Lessee, Operating Lease, Assets and Liabilities [Table Text Block]
Assets
 
As of September 30, 2019
Operating lease right-of-use assets
   
2,360,00
Accumulated amortization
   
(648,000)
Net lease assets
   
1,712,000
       
Liabilities
 
 
 
Current
     
Operating
   
1,268,000
Noncurrent
     
Operating
   
444,000
Total lease liabilities
   
1,712,000
       
Weighted average remaining term (years) – operating leases
   
3
       
Weighted average discount rate – operating leases
   
10%
Lease, Cost [Table Text Block]
Operating right-of-use lease asset amortization
   
160,000
       
Financing lease asset amortization
   
-
Related interest expense
   
-
       
Total expense during three months ended September 30, 2019
   
160,000
Operating right-of-use lease asset amortization
   
648,000
       
Financing lease asset amortization
   
-
Related interest expense
   
-
       
Total expense during nine months ended September 30, 2019
   
648,000