From BiblePortal Wikipedia

Hastings' Dictionary of the Bible [1]

Lidebir See Debir, No. 3, and Lo-debar.

International Standard Bible Encyclopedia [2]

lid´ḗ - bẽr ( לדביר , lidhebhı̄r ): For "of Debir" in EV; the Revised Version margin suggests the name "Lidebir" (  Joshua 13:26 ), a city in the territory of Gad. It is probably identical with Lo-Debar (which see).