The following table provides certain information for each series of convertible preferred stock as of the periods presented (in thousands, except conversion factor):
| As of December 31, 2013 | As of December 31, 2012 | |||||||||||||||||||||||
| Series A | Series M | Total | Series A | Series M | Total | |||||||||||||||||||
|
Shares issued and outstanding |
20 | 10 | 30 | 20 | 88 | 108 | ||||||||||||||||||
|
Conversion factor |
2.50 | 5.00 | NM | 2.50 | 5.00 | NM | ||||||||||||||||||
|
Common shares resulting if converted |
50 | 50 | 100 | 50 | 438 | 488 | ||||||||||||||||||