Well at the least, stabbing someone is in general considered a felony. All felonies carry a sentence of at least 365. So at the very least, a year.
A misdemeanor tends to carry a sentence of 365 days or less. So depending on the circumstances, the defense, previous record and the criminal code for that particular jurisdiction, it could vary.
But as a rule of thumb. Felony = Year+
Misdemeanor = A year or less.