Reverse posted accruals finalized by LP197

When our payroll processed last week, a process through date of 2017 was used on the LP140; which granted a small group of employees their vacation accruals through March of 2017! Is there a way to reverse/delete the processed accruals?  I'm hoping to correct the employee's balances (luckily less than 20 employees were affected) and ideally also correct the accrual transaction history. Input appreciated! Kelci