Is it pulling in any traffic? If I were you, I'd write up an email using Elliot Silver's template and fire it off to the decision makers at each of the companies listed on your site. Do a bit of research on the size and earnings of the companies that respond and price accordingly. Seems like an easy one to flip for a few hundred bucks.
Unfortunately, not much traffic... 100 or so uniques per month.
I'd gladly take $200-$300 for it if I could sell it without too much effort.
Thanks for the feedback!
Considering the geographical niche, your SERP position, and Google's traffic estimate, I'd say you're doing pretty well traffic-wise. Think of it this way: those businesses listed on your page are potentially missing out on 100 leads per month by not owning your domain and your SERP position.
Let me know if you need any help pitching the domain. You best get some emails sent within the next day or two so you can gauge the interest and decide whether to renew or not.

