Which Northeast Caucasian language is unwritten and spoken by only a few thousand people in Georgia?

The Northeast Caucasian language that is unwritten and spoken by only a few thousand people in Georgia is Bats (also known as Tsova-Tushian).123

As a member of the Nakh languages group, Bats is primarily spoken in the village of Zemo-Alvani in the Akhmeta district of northeastern Georgia. Because the language lacks a written form, its speakers utilize Georgian as their literary language.13