| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 06/06/17 | 8-K | Current report filing | 
       
   | 
  6 | |
| 05/31/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 05/31/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 05/30/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 05/30/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 05/30/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 05/30/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 05/30/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 05/24/17 | 8-K | Current report filing | 
       
   | 
  5 | |
| 05/18/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | 
