Date of birth
Arthur joined Town in May 2017 on a one-year deal with the option of a second after impressing at National League North side Kidderminster Harriers.
Gnahoua started his career with Stalybridge Celtic before joining National League side Macclesfield Town.
He scored three goals in 34 appearances at the Moss Rose before having short spells with Whitehawk, Colwyn Bay and CF Gava in Spain.
He joined Harriers in the New Year of 2016 and scored 19 goals in 60 appearances, including a wonder strike in last season's National League North Play-Off Semi-Final.