You can use the Weapon Finesse feat to apply your Dexterity modifier instead of your Strength modifier to attack rolls with a halfling sliverspike, even though it isn’t a light weapon.

You can’t wield a halfling sliverspike in two hands in order to apply 1-1/2 times your Strength bonus to damage.

STATISTICS

Weapon Group One-Handed Exotic Melee; Price 25 gp; Damage 1d6 (Small); 1d8 (Medium); Crit 18-20/x2; Weight 2 lbs.; Type P (piercing.)