We currently lease approximately 5,000 square feet of office space at 4995 Bradenton Avenue, Dublin, Ohio, as our principal offices, at a monthly base rent of $3,012. The current least term expires in June 2023.

In addition, we currently lease approximately 25,000 square feet of office space at 5600 Blazer Parkway, Dublin, Ohio, formerly our principal offices, at a monthly base rent of $28,149 in 2022. The current lease term expires in October 2022 with an option to extend for an additional five years. The Company does not intend to renew this lease. In June 2017, the Company executed a sublease arrangement for the Blazer Parkway space, providing for monthly sublease payments to Navidea of $39,124 through October 2022.

We currently lease office equipment at a monthly payment of $136, expiring in October 2024. We also leased a vehicle at a monthly payment of $287, which expired in September 2021.

Total operating lease expense was $35,497 and $43,913 for the three-month periods ended June 30, 2022 and 2021, respectively. Total operating lease expense was $73,173 and $89,745 for the six-month periods ended June 30, 2022 and 2021, respectively. Operating lease expense was recorded in selling, general and administrative expenses on our condensed consolidated statements of operations.

The following table presents information about the amount, timing and uncertainty of cash flows arising from the Company’s operating leases as of June 30, 2022.

Cash paid for amounts included in the present value of operating lease liabilities was $187,779 and $185,421 during the six-month periods ended June 30, 2022 and 2021, respectively, and is included in operating cash flows.