| Insider |  Price |  Amount |  Total Value |  Remaining Holdings |  Date |  Form 4 |  
   |    Officer   |  $1.25 |  13,700 |  $17,145.55 |  102,061 |  2021-09-10 |  Filing |  
  |    Officer   |  $1.25 |  1,300 |  $1,625.00 |  115,761 |  2021-09-09 |  Filing |  
  |    Officer   |  $3.75 |  4,400 |  $16,495.60 |  51,613 |  2018-09-13 |  Filing |  
  |    Officer   |  $3.30 |  2,000 |  $6,600.00 |  8,096 |  2017-06-09 |  Filing |  
  |    Officer   |  $3.25 |  1,000 |  $3,250.00 |  10,096 |  2017-06-08 |  Filing |  
  |    Officer   |  $3.20 |  500 |  $1,600.00 |  11,096 |  2017-06-08 |  Filing |  
  |    Officer   |  $3.25 |  1,000 |  $3,250.00 |  11,596 |  2017-06-07 |  Filing |  
  |    Officer, Director   |  $1.57 |  1,000 |  $1,570.10 |  218,858 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.57 |  5,700 |  $8,949.00 |  219,858 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.57 |  100 |  $156.75 |  225,558 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.56 |  100 |  $155.75 |  225,658 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.55 |  500 |  $775.05 |  225,758 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.55 |  200 |  $310.00 |  226,258 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.54 |  1,500 |  $2,310.15 |  226,458 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.53 |  173 |  $264.69 |  227,958 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.52 |  325 |  $494.00 |  228,131 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $1.51 |  402 |  $607.06 |  228,456 |  2013-09-06 |  Filing |  
  |    Officer, Director   |  $2.00 |  260 |  $520.00 |  228,858 |  2013-03-15 |  Filing |  
  |    Officer, Director   |  $1.99 |  2,840 |  $5,651.60 |  229,118 |  2013-03-15 |  Filing |  
  |    Officer, Director   |  $1.98 |  900 |  $1,782.00 |  231,958 |  2013-03-15 |  Filing |