What you have is an Epiphone S-310. I think they came in two styles, there was an S-210 as well. I think the 210 came with 2 singles and a hummbucker.
The 210 was mad as late as 2004. I don't know the year range on yours.
They are selling in the 50 to100 dollar range in most cases. I am not sure about the body. Could be a laminated body.
Update: Did some research and the S series were made in various levels from 1986 to 1999. There were several configurations of pickups and neck finishes/inlays.
SSS, and HH, and SSH pickups combos. Nothing on body material but being Made in Korea in that era they should be pretty good material.
The earliest Epi. catalogue I have is a 2004 has the S210 in it with SSH pickups.
Hope that helps.