b"the right to renew the lease for two additional 5-year optional terms for a total optional renewal right of up to 10 years.The lease payments for the twelve months beginning October 2015 are $99,000 annually plus monthly common area maintenance and real estate taxes based on the agreement terms.Beginning October 2020, the base lease payment increases to $108,900 annually.The lease payments for the two additional 5-year optional terms beginning in October 2025 are $119,790 annually.Minimum future rental payments under these three leases are as follows:2019 $163,8232020 $166,8282021 $174,7942022 $156,4762023 $116,5252024 and thereafter $203,919 Lease expense for the years ended December 31, 2018 and 2017 was $162,830 and $162,128, respectively.From time to time, the Bank rents foreclosed properties if they are unable to sell them.The Bank has received $0 and $2,750 in rental income during the years ended December 31, 2018 and 2017, respectively.NOTE 20.OTHER OPERATING EXPENSESYears ended December 31,2018 2017Stationery, supplies and printing $126,189 $ 143,950Data processing 997,971 756,150Director's fees and deferred compensation 463,364390,193Postage129,001 129,705Telephone 172,787 182,013Professional fees360,656442,142Kasasa expenses218,170 171,866Regulatory assessment fees143,955 131,345ATM and debit card fees486,871460,078Advertising 363,417 337,639Other 1,091,2621,119,812Total other operating expenses $ 4,553,643 $4,264,893 NOTE 21.FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISKCNB is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers.These financial instruments include commitments to extend credit, and standby letters of credit.Those instruments involve, to varying degrees, elements of credit and interest rate risk which are not reflected in the statements of financial condition.The contractual amounts of those instruments reflect the extent of involvement CNB has in particular classes of financial instruments.CNBs exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit written is represented by the contractual amount of those instruments.CNB uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments.Commitments to extend credit are agreements to lend funds as long as there is no violation of any condition established in the contract.Commitments generally have fixed expiration dates or other termination clauses.Commercial line of credit arrangements usually requires payment of a fee. CNB evaluates each customer's creditworthiness and related collateral on a case-by-case basis.The amount of collateral obtained if deemed necessary by CNB upon extension of credit is based on management's credit 39"