OTHER BORROWED FUNDS Maturity amounts and the weighted average rate of FHLB advances by year of maturity were as follows as of the dates presented (dollars in thousands): (a) Amortizing advances due 2016, requiring monthly principal and interest of $15,284 (b) Amortizing advances due 2017, requiring monthly principal and interest of $46,937 As of December 31, 2014, these advances are collateralized by approximately $224.7 million of the Company’s loan portfolio and $43.3 million of the Company’s investment securities in accordance with the Advance Security and Collateral Agreement with the FHLB.