Ad Hoc Workers

Ad Hoc Workers are a kind of worker in Laysara: Summit Kingdom.
Whenever you don't have enough residents to keep your production buildings up, the game will automatically hire ad hoc workers. Since they don't live on the mountain, they significantly cut into the money flow and hence should be avoided at all costs.
If there is a white box with a number under the respective resident indicator, then you're hiring ad hoc workers.