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Note 4 - Stock Options and Warrants (Tables)
6 Months Ended
Jun. 30, 2017
Stock Options And Warrants Tables  
Summary of the stock option activity
   Options Outstanding  Weighted Average Exercise Price
 Outstanding as of December 31, 2016    1,246   $1,428.12 
 Granted    —      —   
 Forfeited    —      —   
 Exercised    —      —   
 Outstanding as of June 30, 2017    1,246   $1,428.12 
Summary of the warrant activity
   Warrants Outstanding  Weighted Average Exercise Price
 Outstanding as of December 31, 2016    15,550   $15.00 
 Granted    175,968    15.00 
 Forfeited    —      —   
 Exercised    (1,944)   15.00 
 Outstanding as of June 30, 2017    189,574   $15.00