$IMPM
Market Cap:
$IMPM SEC Filings
| Filing | Filed On |
|---|---|
| 424B2 | 02 May 2007 |
| 424B2 | 06 Feb 2007 |
| PROSPECTUS FILED PURSUANT TO RULE 424(B)(2) | 08 May 2006 |
| PROSPECTUS SUPPLEMENT FOR 363,700 SHARES OF COMMON STOCK | 08 Feb 2006 |
| PROSPECTUS SUPPLEMENT FOR 72,500 SHARES SERIES C PREFERRED STOCK | 08 Feb 2006 |
| PROSPECTUS SUPPLEMENT | 28 Jul 2004 |
| DEFINITIVE MATERIALS | 22 Apr 2004 |
| 424B2 | 06 Feb 2004 |
| DEFINITIVE MATERIALS | 14 Nov 2003 |
| DEFINITIVE MATERIALS | 05 Aug 2003 |
| FORM 424B2 | 02 Apr 2003 |
| 424B2 | 21 Feb 2003 |
| FORM 424B2 | 14 Jan 2003 |
| FORM 424B2 | 14 Nov 2002 |
| FORM 424B2 | 15 Aug 2002 |
| PROSPECTUS SUPPLEMENT | 23 Dec 1998 |
