Debra Nading, 59, pleaded guilty to an embezzlement charge in federal court.
She was working at the Labette Bank as an assistant cashier and bookkeeping supervisor when she took $213,000. Nading admitted to using her access to bank credit card accounts to make false entries to cover up the crime.
She could be sentenced up to 30 years in prison and pay a fine of up $1 million.
That will be determined at a court appearance in November.