dealing with counterparties that are considered to be of high credit quality and by performing periodic evaluations of the relative credit standing of these financial institutions.
Management periodically monitors the creditworthiness of its customers and believes that it has adequately provided for any exposure to potential credit loss. For the three months ended September 30, 2022, two customers accounted for 41.2% and 26.2% of the Company’s revenues, respectively. For the three months ended September 30, 2021, two customers accounted for 39.7% and 27.9% of the Company’s revenues. For the nine months ended September 30, 2022, two customers accounted for 39.9% and 30.1%, of the Company’s revenues, respectively. For the nine months ended September 30, 2021, two customers accounted for 38.6% and 30.5% of the Company’s revenues, respectively. As of September 30, 2022, three customers accounted for 30.3%, 26.3%, and 13.0% of the Company’s accounts receivable, respectively. As of December 31, 2021, three customers accounted for 21.9%, 20.1%, and 16.6% of the Company’s accounts receivable, respectively. The Company’s largest customer in terms of both revenues and accounts receivable in the nine months ended September 30, 2022 is a U.S. diversified healthcare company and its affiliated plans.
As of September 30, 2022, two vendors accounted for 11.9% and 11.4% of the Company’s accounts payable, respectively. As of December 31, 2021, one vendor accounted for 14.0% of the Company’s accounts payable, respectively.
11. Leases
On July 31, 2020, the Company entered into a 61-month lease agreement for office space to use, as necessary, for office administration, lab space and assembly and storage purposes, located in Santa Clara, California. The Company took possession of the leased office space in September 2020, and the lease is effective through September 30, 2025.
As of September 30, 2022, the remaining lease term is three years and three months with no options to renew. The Company recognized facilities lease expenses of $22 and $22 for the three months ended September 30, 2022 and 2021, respectively. The Company recognized facilities lease expenses of $66 and $90 for the nine months ended September 30, 2022 and 2021, respectively.
The following table summarizes the future minimum rental payments required under operating leases that had initial or remaining non-cancelable lease terms greater than one year as of September 30, 2022:
| | | |
| | Total |
2022 Remaining period | | $ | 22 |
2023 | | | 90 |
2024 | | | 93 |
2025 | | | 71 |
Total undiscounted future minimum lease payments | | | 276 |
Less: present value discount | | | (10) |
Total lease liabilities | | | 266 |
Lease expense in excess cash payment | | | (13) |
Total ROU asset | | $ | 253 |
As of September 30, 2022, the Company’s right-of-use (“ROU”) asset was $253, which was recorded on the Company’s balance sheet as other noncurrent assets, and the Company’s current and noncurrent lease liabilities were $84 and $182, respectively, which were recorded on the Company’s balance sheet as other short-term liabilities and other long-term liabilities, respectively. As of December 31, 2021, the Company’s ROU asset was $314, which was recorded on the Company’s balance sheet as other noncurrent assets, and the Company’s current and noncurrent lease liabilities were $80 and $245, respectively, which were recorded on the Company’s balance sheet as other short-term liabilities and other long-term liabilities, respectively.
Lease Arrangements
The Company enters into contracts with customers for the Company’s QuantaFlo product. The Company has determined these contracts meet the definition of a lease under Topic 842. The lease portfolio primarily consists of operating leases that are short-term in nature (monthly, quarterly or one year, all of which have renewal options). The Company allocates the consideration in a bundled