Here is a link I pulled up concerning NSF. It mentions a diversion program, which is basically a "forgiveness" plan. The law is stated "with intent to defraud". Now one could argue there was no inent to since the account was active and had at least half the amount and a mistake of fact happened??
Howver, convincing a judge or jury of this may be very very difficult. If you intend to plead guilty, you can ask to be entered into thier diversion program if this was your first crime. You can attempt to research that some more.
You can be liable for treble damages to the merhcant, as a civil penalty though.
http://72.14.205.104/search?q=cache:...lnk&cd=2&gl=us
Let's assume a diversion plan is not available, for the sake of argument, and you plead guilty and do not consult a criminal defense attorney before hand. Is it possible a jail term may be slapped on you?? Yes, but a minimum one. The MAX penalities do not mean it is an absolute, just authorized by law.
I would not worry too much about any jail time, although that of course is not gospel. If convicted, some other sanctions will be levied against you, such as probation, community service, etc. and "maybe" the max money fine??
IF you can afford to retain an attorney, it may be in your best interest though.