What are the implications of a motion for acquittal on a charge of receiving stolen property?

Defendants' next contention is that the trial court erred in not granting their motion for acquittal on the receiving stolen property charge. That motion was based on an allegation of insufficient evidence, a factual determination to be made by the trial court. We are required to determine if there is substantial evidence to support the conclusion of the trier of fact. (People v. Johnson (1980) 26 Cal.3d 557, 576, 578, 162 Cal.Rptr. 431, 606 P.2d 738.