| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/04/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/04/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/04/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/04/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/23/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  2 | |
| 03/15/18 | 8-K | Current report filing | 
       
   | 
  2 | |
| 03/15/18 | 8-K/A | Current report filing | 
       
   | 
  2 | |
| 03/02/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 02/28/18 | 8-K | Current report filing | 
       
   | 
  2 | |
| 02/16/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | 


