The following information pertains to Havana Corporation's defined benefit pension plan ($ in thousands) Projected benefit obligation Plan assets Prior service cost-AOCI Net loss-AOCI 2021 2022 Beginning Beginning balances balances $(7,800) $(8,304) 7,500 8,136 780 720 $ 900 $ 970 At the end of 2021, Havana contributed $748 thousand to the pension fund and benefit payments of $774 thousand were made to retirees. The expected rate of return on plan assets was 10%, and the actuary's discount rate is 7%. There were no changes in actuarial estimates and assumptions regarding the PBO What is Havana's 2021 gain or loss on plan assets?