I got arrestd and spent night in jail for stealing three dollars out of a car what will happn in court?

it was in the walmart parking lot and i reached in the window of a car because i saw a few bux and i was already stressn depts and stuff i had to handle tickets n such so i just took it i was seen and somone calld the cops i was takn into custody with charge of petty larceny i speant a night in jail postd bail at five hunderd my court date is in a few weeks what should i expect penelty wise first offender of any crime>>