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Note 7 - Stock Incentive Plan (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
Schedule of Nonvested Share Activity [Table Text Block]
Unvested Shares     Shares       Weighted-Average Grant-Date Fair Value  
Unvested on January 1, 2019    
175,585
     
1.27
 
Granted    
-
     
-
 
Vested    
-
     
-
 
Forfeited    
-
     
-
 
Unvested on June 30, 2019    
175,585
     
1.27