This is a passage taken from an article:
My last job was in an air-conditioned office in a business park in Woburn, Mass., as a draftsman designing laboratories. It was like being a kitchen designer but even more boring. Every day I went into work I contemplated suicide. Was this to be the rest of my life? I finally got fired, the combination of poor job performance, a ruined economy and good old-fashioned New England insularity.
What does good mean in the sentence I bolded above?