"He is a genius, he is." Is there a term for the "he is" addition to this sentence?

Just as we have tail-questions (or question tags), affirmative additions to affirmative remarks ("so do I", "so did he") and negative additions to negative remarks ("neither do I", "neither would I", etc), is there a term for this kind of addition to a sentence?

• "Despite all the corruption, he was re-elected. He is a masterpiece, he is."
• "She is a fly customer, she is."
• "He is a genius, he is.

It's called right dislocation, and it's covered in CGEL Ch.16, §8.2 (pp. 1411-1412) where the dislocated constituent is said to be subject to two constraints:

• It must be discourse-old—the entity referred to must have been previously introduced into the discourse.

• It must be topical—the entity referred to must be the topic of the immediately preceding discourse.