Aptose leases office space and lab space in San Diego, California. The lease for the office space expires on March 31, 2023, and can be extended for an additional five-year period. The lease for our lab space was renewed for 12 months on February 28, 2022 and expires on February 28, 2023. We also lease office space in Toronto, Ontario, Canada, and the lease for this location expires on June 30, 2023, with an option to renew for another five-year period. The Company has not included any extension periods in calculating its right-to-use assets and lease liabilities.   The Company also leases for small office equipment.

Minimum payments, undiscounted, under our operating leases are as follows:

The following table presents the weighted average remaining term of the leases and the weighted average discount rate:

Operating lease costs and operating cash flows from our operating leases are as follows: