What's the goal of Catholic/Protestant ecumenism?

In a small town, the height of ecumenism is a joint Christmas choir concert. We certainly tolerate each other enough not to throw our respective clerics/elders out of our steeples. But we don't really come to any sort of understanding of each other. I've learned more about protestantism in 2 weeks of this website than I have in the last 20 years of parish life. Which raises the question, what is the overarching goal of ecumenism? It would seem to me that there are two natural ends. 1. Reconciliation, where we acknowledge our differences and proceed on our different courses towards salvation in harmony with one another or 2. Reunification, where we acknowledge our differences and proceed with our one course toward salvation in a sonorous melody. perhaps there are more goals, but are there any ecumenical documents to show that we're making any progress toward these goals? Also, are they polar opposites, if we proceed toward Reconciliation do we throw out Reunification?