What does that mean?

Mercadet
Totally ruined. And if you wish to have my Julie, you are welcome to
her. She will be much better off at your house, poor as you are, than
in her paternal home. Not only is she without dowry, but she is
burdened with poor parents--parents who are more than poor.

Minard
More than poor! There is nothing beyond that.

Mercadet
Yes, sir, we are in debt, deeply in debt, and some of these debts
clamor for payment.

Minard
No, no, it is impossible!

Mercadet
Don't you believe it? (Aside) He is getting frightened. (Taking up a
pile of papers from his desk. Aloud) Here, my would-be son-in-law, are
the family papers which will show you our fortune--

Minard
Sir--

Mercadet
Or rather our lack of fortune! Read-- Here is a writ of attachment on
our furniture.