When results turn bad, they'll run company on short-term basis? (4-7,7)

I believe the answer is:

fair-weather friends

'when results turn bad they'll run company on short-term basis?' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'short-term basis?' is the subsidiary indication.
'short-term' becomes 'fairweather'.
'basis?' becomes 'friends' (I am not sure about this - if you are sure you should believe this answer much more).
'fairweather'+'friends'='fairweatherfriends'

I've seen this clue in The Independent.

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