Exhibit I

                                       to

                                  Schedule 13G

Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company.
The classification and identity of the relevant subsidiaries are as follows:

Parent Holding Company - Securities America Financial Corporation, a Nebraska
corporation

Investment Adviser - Securities America Advisors, Inc., a Nebraska corporation,
is investment adviser registered under section 203 of the Investment Advisers
Act of 1940.