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Net Loss Per Share (Tables)
6 Months Ended
Jun. 30, 2019
Earnings Per Share [Abstract]  
Schedule of antidilutive excluded from calculation of earnings per share
   For the Three Months Ended   For the Six Months Ended 
   June 30,
2019
   June 30,
2018
   June 30,
2019
   June 30,
2018
 
                 
Stock options   1,077    726    1,077    726 
Warrants   2,812    1,839    2,812    1,839