| UPGRADES & DOWNGRADES HISTORY |
| Date | Research Firm | Action | From | To | | 15-Sep-09 | Roth Capital | Downgrade | Buy | Hold | | 10-Feb-09 | Dougherty & Company | Downgrade | Buy | Neutral | | 1-Oct-08 | Roth Capital | Initiated | | Buy | | 29-Sep-08 | Dougherty & Company | Upgrade | Neutral | Buy | | 5-Aug-08 | Dougherty & Company | Initiated | | Neutral |
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| Current Month | Last Month | Two Months Ago | Three Months Ago | | Strong Buy | 1 | 0 | 0 | 0 | | Buy | 0 | 0 | 0 | 1 | | Hold | 2 | 3 | 2 | 1 | | Underperform | 0 | 0 | 0 | 0 | | Sell | 0 | 0 | 0 | 0 |
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