adjective

annoyingly trivial or petty.

fiddling little details

trivial,petty,trifling,insignificant,unimportant,inconsequential,inconsiderable,negligible,paltry,footling,minor,small,slight,incidental,of little/no account,piddling,piffling,penny-ante,twopenny-halfpenny,nickel-and-dime,picayune,chickenshit