Skeleton crew

A skeleton crew features a minimal number of crewmen required for starship or space station operations, sometimes fewer. They are often formed during emergencies.

The D5 class variant was capable of operating with a skeleton crew of just four. 

The final version of the Xindi superweapon was designed to be operated by a skeleton crew. 

In 2268, the USS Enterprise (NCC-1701) needed a skeleton crew of twenty while using the M-5 computer. 

In 2287, Starfleet Command had the USS Enterprise (NCC-1701-A) go to Nimbus III, much to Captain Montgomery Scott's dismay as he remarked, "the ship's in pieces and we've got less than a skeleton crew aboard!"

In 2368, Commander Data suggested a skeleton crew from the USS Enterprise (NCC-1701-D) could take the Kallisko to a starbase. 

In 2369 a skeleton crew operated the space station Deep Space 9 after a aphasia virus infected everyone except Quark and Odo. 

In 2370, the Enterprise-D was left with only a skeleton crew under the command of Beverly Crusher while the rest of the crew were on the surface of a planet, searching for Data. 

A few weeks later, a skeleton crew was left to run Deep Space 9 during a plasma disruption that forced the evacuation of the station. 

After the Reckoning began on Deep Space 9 in late 2374, a skeleton crew remained aboard once the majority of the station's population had left.