How do I report a small offshore account?

I had money in offshore account in India which is joint between my mom and I. For a short time of about a month balance was $24,000 in 2008, which I gifted to my mom in her individual account after selling an apartment that I owned there. I also got interest of about $150 on that which I never reported and, also, the account was not declared since I was not aware of the rules. The apartment was sold at almost no profit no loss, probably around $200 loss maybe which, again I did not show in my taxes. Do I need to show that as well?I am a US citizen, which I got in 2007. What can I do? Can I report the account now and do I need to declare the $150 interest as income? And also, do I need to report apartment sale transaction which was at almost some $200 loss? Would there be any penalties?