Louisiana Charter School Question & Discussion

There is a charter school in my area. Today I was talking about it with some people who are involved in the school system and I learned that this particular charter school is a F graded school (or whatever it is) and the school gets $3 Million a year from the parish school board budget, which comes out to be almost $10k a student whereas the public schools get about $4k a student.

Are the charter schools in New Orleans different from some of these other charter schools in other parishes that just popped up (this particular school, I think, is in its 2nd year). There are commercials for this charter school, which is what sparked the conversation, but I am just curious how this works. Are they privately owned?