| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/31/99 | 10-K405 | Form 10-K405: Annual report [Sections 13 and 15(d), S-K Item 405] | 64 | |
| 02/12/99 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 02/11/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 02/09/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 8 | |
| 02/09/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 7 | |
| 02/02/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 2 | |
| 11/12/98 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 16 | |
| 11/12/98 | 8-K/A | Form 8-K/A: Current report | 11 | |
| 11/05/98 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 11/04/98 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 3 |