you should be able to import an ai file into indesign, but it's best to use a pdf or eps, assuming it's a vector. if the logo is 100% vector, then go to save as > pdf > set to smallest file size.
edit: just realized you talked about lost quality. logos should never be images/raster if that is the case.
edit2: are your display settings low in indesign? go to to view > display performance > high quality if you want to see it clear. they're pixilated so the program runs faster.
This post was edited by ericswanson_19 on Oct 4 2012 08:39am