What's wrong with this SQL?

I'm trying to create a table and I'm getting this error:

      SQL error:


ERROR:  syntax error at or near "(" at character 39
      In statement:
      CREATE TABLE "users" ("user_ID" SERIAL(12), "first_name" character
varying(40) NOT NULL, "last_name" character varying(40) NOT NULL, "password"
character varying(16) NOT NULL, "email" character varying(100) NOT NULL,
"privilege" integer(2) NOT NULL, PRIMARY KEY ("user_ID"))



      What's wrong with this SQL?