Gee those college kids never learn their lessons ! You was so lucky the first time by paying fines only . According to MIP Law Public act 63 MCL436.1703 of Michigan the 2nd offense punishment are
-$200 fine
-Substance abuse treatment classes (which you have to pay)
-Community services (up to the court)
-30 days jail is possible only upon violation of probation ( I don't think you got probation last time ?) or failure to complete treatment or pay fine
-License shall be suspended for 90 days, restricted possible after 30 days