| Insider |  Price |  Amount |  Total Value |  Remaining Holdings |  Date |  Form 4 |  
   |    Officer, Director   |  $4.95 |  20,000 |  $98,970.00 |  1,174,919 |  2020-02-03 |  Filing |  
  |    Officer, Director   |  $4.84 |  14,182 |  $68,655.06 |  1,194,919 |  2020-01-31 |  Filing |  
  |    Officer, Director   |  $4.95 |  20,000 |  $98,970.00 |  1,125,332 |  2020-02-03 |  Filing |  
  |    Officer, Director   |  $4.84 |  14,182 |  $68,655.06 |  1,145,332 |  2020-01-31 |  Filing |  
  |    Officer, Director   |  $4.97 |  30,718 |  $152,634.67 |  1,209,101 |  2020-01-30 |  Filing |  
  |    Officer, Director   |  $4.88 |  52,500 |  $256,352.25 |  1,239,819 |  2020-01-29 |  Filing |  
  |    Officer, Director   |  $4.97 |  30,718 |  $152,634.67 |  1,159,514 |  2020-01-30 |  Filing |  
  |    Officer, Director   |  $4.88 |  52,500 |  $256,352.25 |  1,190,232 |  2020-01-29 |  Filing |  
  |    Officer, Director   |  $4.62 |  16,000 |  $73,932.80 |  1,292,319 |  2020-01-28 |  Filing |  
  |    Officer, Director   |  $4.42 |  15,000 |  $66,279.00 |  1,308,319 |  2020-01-27 |  Filing |  
  |    Officer, Director   |  $4.62 |  16,000 |  $73,932.80 |  1,242,732 |  2020-01-28 |  Filing |  
  |    Officer, Director   |  $4.42 |  15,000 |  $66,279.00 |  1,258,732 |  2020-01-27 |  Filing |  
  |    Officer, Director   |  $4.23 |  18,000 |  $76,120.20 |  1,273,732 |  2020-01-24 |  Filing |  
  |    Officer, Director   |  $4.61 |  3,100 |  $14,278.60 |  1,291,732 |  2020-01-23 |  Filing |  
  |    Officer, Director   |  $4.23 |  18,000 |  $76,120.20 |  1,323,319 |  2020-01-24 |  Filing |  
  |    Officer, Director   |  $4.61 |  3,100 |  $14,278.60 |  1,341,319 |  2020-01-23 |  Filing |  
  |    Officer, Director   |  $4.59 |  9,000 |  $41,277.60 |  1,344,419 |  2020-01-22 |  Filing |  
  |    Officer, Director   |  $4.61 |  5,000 |  $23,057.00 |  1,353,419 |  2020-01-21 |  Filing |  
  |    Officer, Director   |  $4.59 |  9,000 |  $41,277.60 |  1,294,832 |  2020-01-22 |  Filing |  
  |    Officer, Director   |  $4.61 |  5,000 |  $23,057.00 |  1,303,832 |  2020-01-21 |  Filing |