Verizon Communications has a defined benefit pension plan with the following information: 2021 2022 Beginning Beginning ($ in thousands) balances balances Projected benefit obligation $(6,700) $(7,204) Plan assets Prior service cost-AOCI 6,400 670 7,036 640 Net loss-AOCI $ 790 $ 850 At the end of 2021, Verizon contributed $730 thousand of cash to the pension fund. Retirees of the company were paid $664 thousand. The plan asset's expected rate of return was 10%, and the discount rate on the obligations was 8%. There were no changes in actuarial estimates and assumptions regarding the PBO. What is the 2021 pension expense