| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/12/98 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 02/11/98 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 6 | |
| 02/10/98 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 1 | |
| 02/05/98 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 6 | |
| 01/30/98 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 9 | |
| 12/16/97 | 424B5 | Form 424B5: Prospectus [Rule 424(b)(5)] | 58 | |
| 12/16/97 | 8-K | Form 8-K: Current report | 30 | |
| 12/15/97 | 8-A12B | Form 8-A12B: Registration of securities [Section 12(b)] | 10 | |
| 12/08/97 | 10-K/A | Form 10-K/A: Annual report [Section 13 and 15(d), not S-K Item 405] | 191 | |
| 12/08/97 | 10-Q/A | Form 10-Q/A: Quarterly report [Sections 13 or 15(d)] | 23 |