| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/27/98 | 10-K405 | Form 10-K405: Annual report [Sections 13 and 15(d), S-K Item 405] | 69 | |
| 03/10/98 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/12/98 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 02/05/98 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 01/27/98 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 2 | |
| 01/23/98 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 7 | |
| 11/14/97 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 16 | |
| 10/03/97 | S-3/A | Form S-3/A: Registration statement under Securities Act of 1933 | 9 | |
| 09/24/97 | S-8 POS | Form S-8 POS: Post-effective amendment to a S-8 registration statement | 2 | |
| 09/24/97 | S-8 POS | Form S-8 POS: Post-effective amendment to a S-8 registration statement | 2 |