Note 5 – Prepaid Expenses and Other Current Assets

During the year ended December 31, 2018, the Company entered into non-employee agreements with service providers where it issued fully vested and non-forfeitable warrants and common stock for future services to be rendered. As of December 31, 2018, the Company recorded, in the aggregate, a prepaid expense totaling $344 for the value of the vested warrants.

The Company contracts with vendors to produce components and inventory for the Company’s clinical studies, training, and future sales. As of December 31, 2018 and 2017, the Company recorded advanced payments as prepaid expenses totaling $353 and $408, respectively, with two of these suppliers which was recorded as vendor deposits against future purchases.