The phrase "tiny details" refers to very small, specific pieces of information or small parts of something.
Sentences with «tiny details»
Those highly energetic beams revealed tiny details of the bones without damaging them. (sciencenewsforstudents.org)
There's a shit - ton of tiny details in there that I missed. (electrondance.com)
These kids often have photographic memories, giving them the ability to remember even tiny details about events or information that others would most likely miss. (ph.theasianparent.com)