Part Year NJ / Part Year PA Resident

I was a part year resident of NJ for ~ half the year and then moved to PA. I worked for the same employer for the entire year and they are located in NJ . When I moved, I informed my employer and they stopped withholding NJ tax and began withholding PA. In this instance, would I only fill out a part year resident return for NJ and a part year resident return for PA? Is a non-resident return required for NJ since PA and NJ have reciprocity? My only income while a resident of NJ was W-2 wages.