Help! My little potbelly fig is nearly bald!

Posted about a week ago about my Bonsai potbelly fig. No answers yet, so as it continued to lose leaves I brought it inside in case it was too cold outside. The leaves continued to turn yellow and drop.
Could it just be shock from repotting when I bought it? It went from a 3" deep, 4" diameter, round pot, to a 2" deep, 9" long, oblong bonsai pot. Any suggestions appreciated.

 

Overwatering? Let the soil get just dry before watering again, and don't drown it

 

Thanks for your reply. Yeah, I thought it could be too much water. Maybe I need to let it dry out for longer between drinks. I,ll give it a try. Best regards, Kat.