| Upgrades & Downgrades History |
|---|
| Date | Research Firm | Action | From | To |
|---|
| May 11, 2011 | Stifel Nicolaus | Upgrade | Hold | Buy | | Jun 2, 2010 | B. Riley | Upgrade | Neutral | Buy | | Apr 16, 2010 | B. Riley | Downgrade | Buy | Neutral | | May 13, 2009 | B. Riley & Co | Upgrade | Neutral | Buy | | Dec 9, 2008 | B. Riley & Co | Downgrade | Buy | Neutral | | Dec 10, 2007 | Stifel Nicolaus | Downgrade | Buy | Hold | | Aug 1, 2007 | Stifel Nicolaus | Upgrade | Hold | Buy | | Jan 19, 2006 | Matrix Research | Initiated | | Strong Sell | | Jun 3, 2004 | Piper Jaffray | Upgrade | Market Perform | Outperform | | Jul 16, 2003 | B. Riley | Initiated | | Neutral |
| Current Month | Last Month | Two Months Ago | Three Months Ago |
|---|
| Strong Buy | 0 | 0 | 0 | 0 |
|---|
| Buy | 0 | 0 | 0 | 0 |
|---|
| Hold | 0 | 0 | 0 | 0 |
|---|
| Underperform | 0 | 0 | 0 | 0 |
|---|
| Sell | 0 | 0 | 0 | 0 |
|---|
|
Data provided by Thomson/First Call
Currency in USD. |