| Upgrades & Downgrades History |
|---|
| Date | Research Firm | Action | From | To |
|---|
| Apr 26, 2013 | Dougherty & Company | Upgrade | Neutral | Buy | | Feb 15, 2013 | Wunderlich | Downgrade | Buy | Hold | | Feb 15, 2013 | Oppenheimer | Downgrade | Outperform | Perform | | Dec 18, 2012 | Northland Securities | Initiated | | Outperform | | Jul 26, 2012 | Needham | Downgrade | Buy | Hold | | Jul 26, 2012 | Dougherty & Company | Downgrade | Buy | Neutral | | Jun 13, 2012 | Oppenheimer | Initiated | | Outperform | | Mar 29, 2012 | Needham | Initiated | | Buy | | Dec 6, 2011 | Barclays Capital | Initiated | | Overweight | | Jun 3, 2010 | Dougherty & Company | Initiated | | Buy |
| 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. |