what would you call this staging?

I recently performed a short performance (which I need to do a write-up about) with a set that looked basically like a cube, which had two sides that were walls and two sides that had seats for audience members, so it essentially looked like this:

s e a t s

s |

e |

a |

t |

s |

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It's sort of between a proscenium and a thrust, and I'm not sure what to call it in my write-up. Anyone have any ideas? Thank you!