pernickety

from WordNet (r) 3.0 (2006)

pernickety
    adj 1: characterized by excessive precision and attention to
           trivial details; "a persnickety job"; "a persnickety
           school teacher" [syn: {pernickety}, {persnickety}]

from The Collaborative International Dictionary of English v.0.48

Pernickety \Per*nick"et*y\, Pernicketty \Per*nick"et*ty\, a.
   Finical or fussy; full of petty details. [Colloq.]

   Syn: finical, finicky, fussy, meticulous, painstaking,
        persnickety, punctilious.
        [Webster 1913 Suppl. + WordNet 1.5 + PJC]