  We give an equivalent definition of the stable Calabi--Yau dimension in terms
of bimodule syzygies and so-called stably inner automorphisms. Using it, we
complete the computation of the stable Calabi--Yau dimensions of the
self-injective algebras of finite representation type which was started by K.
Erdmann, A. Skowro\'nski, J. Bia\lkowski and A. Dugas.
