| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | May 9, 2025 | May 8, 2025 | 000-21810 | 
| 4 | Open Document | Open Filing | 4 | May 20, 2024 | May 16, 2024 | 000-21810 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 22, 2023 | May 18, 2023 | 000-21810 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 6, 2022 | Jun 2, 2022 | 000-21810 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2021 | May 20, 2021 | 000-21810 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 12, 2021 | Jan 8, 2021 | 000-21810 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jan 12, 2021 | Jan 8, 2021 | 000-21810 |