Controls at a small branch

I am looking for input on how those with very small branches operate and if they still use dual control.  I looked back at the forum to see if this is discussed and the only input I saw was for branches with one employee.

I am more interested in controls at a branch with say 2.5 employees (2 full-time and one part-time).  Has anyone expereinced this?  Is everything still conducted using the dual key box?  Do you use dual control or single control due to limited staff?

Any input is appreciated!