| Date | Acquired | Amount |
|---|---|---|
| Mar 04, 2013 |
|
Undisclosed amount |
| May 02, 2005 |
|
Undisclosed amount |
| Dec 22, 2004 |
|
$ 1,200,000 |
| Aug 22, 2002 |
|
$ 1,700,000 |
