| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/23/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/23/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/07/18 | 8-K | Current report filing | 
       
   | 
  34 | |
| 01/23/18 | 8-K | Current report filing | 
       
   | 
  14 | |
| 01/23/18 | SC 13G/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | 
       
   | 
  5 | |
| 01/17/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/17/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/17/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/12/18 | 8-K | Current report filing | 
       
   | 
  4 | |
| 12/21/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

