State regulators are allowing a small charter school in eastern Arizona to stay open until the end of the current semester after being ordered to shut down. The school failed to meet academic performance standards.

The Arizona State Board of Charter Schools unanimously moved to postpone the closure of Jefferson Academy in Show Low until midnight on Dec. 23. Jefferson had appealed the board’s previous decision to revoke the school’s charter after receiving D and F letter grades on its achievement profiles. Then, it failed to make improvements demanded by the board.

The state court of appeals ruled last week the board has the authority to revoke the charter, saying the courts cannot substitute their judgment for the boards.