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Note 7 - Leases (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Lease, Cost [Table Text Block]
    Nine Months Ended
    September 30, 2019
    ($ in thousands)
Lease cost:        
Operating   $
918
 
Variable    
167
 
Short-term    
20
 
Total lease cost   $
1,105
 
         
Cash paid for amounts included in measurement of  lease liabilities:        
Operating   $
905
 
         
Weighted-average remaining lease term (years):        
Operating    
2.92
 
Weighted-average discount rate:        
Operating    
4.45
%
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Remainder of 2019    
299
 
2020    
1,149
 
2021    
1,119
 
2022    
957
 
2023    
36
 
Thereafter    
-
 
Total lease payments    
3,560
 
Less: Interest    
(228
)
Present value of lease liabilities   $
3,332
 
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
2019   $
1,051
 
2020    
1,070
 
2021    
1,063
 
2022    
975
 
2023    
36
 
Total   $
4,195