Automatic flash for X-cameras?

I've been looking and researching but I haven't been able to find a flash for my X-100 and X-E1. I'm looking for:

- Manual and auto. Not interested in TTL, etc.
- Small. I do travel photography and have to travel light
- Swivel head if possible
- $100-150 price point

Hopefully someone here knows what I'm looking for.

Ciao,
Jim