| 8-K | Current report | June 2, 2020 | |
| CORRESP | Correspondence | June 2, 2020 | |
| UPLOAD | SEC-generated letter | May 29, 2020 | |
| S-1 | General form for registration of securities under the Securities Act of 1933 | May 21, 2020 | |
| 10-Q | Quarterly report [Sections 13 or 15(d)] | May 12, 2020 | |
| 8-K | Current report | May 8, 2020 | |
| 8-K | Current report | May 8, 2020 | |
| 10-K | Annual report [Section 13 and 15(d), not S-K Item 405] | March 27, 2020 | |
| 8-K | Current report | March 26, 2020 | |
| 424B3 | Prospectus [Rule 424(b)(3)] | February 25, 2020 | |