to be considered “well capitalized.” As of January 1, 2020, the Bank elected to follow the Community Bank Leverage Ratio. See details of our capital ratios in Note 4 of the Consolidated Financial Statements.
Liquidity
Liquidity describes our ability to meet financial obligations, including lending commitments and contingencies, which arise during the normal course of business. Liquidity is primarily needed to meet the borrowing and deposit withdrawal requirements of our customers, to fund the operations of our mortgage-banking business, as well as to meet current and planned expenditures. These cash requirements are met on a daily basis through the inflow of deposit funds, the maintenance of short-term overnight investments, maturities and calls in our securities portfolio, and available lines of credit with the FHLB, which requires pledged collateral. Fluctuations in deposit and short-term borrowing balances may be influenced by the interest rates paid, general consumer confidence, and the overall economic environment. There can be no assurances that deposit withdrawals and loan fundings will not exceed all available sources of liquidity on a short-term basis. Such a situation would have an adverse effect on our ability to originate new loans and maintain reasonable loan and deposit interest rates, which would negatively impact earnings.
Our principal sources of liquidity are loan repayments, maturing investments, deposits, borrowed funds, and proceeds from loans sold on the secondary market. The levels of such sources are dependent on the Bank’s operating, financing, and investing activities at any given time. We consider core deposits stable funding sources and include all deposits, except time deposits of $100,000 or more. The Bank’s experience has been that a substantial portion of certificates of deposit renew at time of maturity and remain on deposit with the Bank. Additionally, loan payments, maturities, deposit growth, and earnings contribute to our flow of funds.
In addition to our ability to generate deposits, we have external sources of funds, which may be drawn upon when desired. The primary source of external liquidity is an available line of credit with the FHLB. The Bank’s total credit availability under the FHLB’s credit availability program was $256.1 million at June 30, 2020, of which $35.0 million was outstanding.
The borrowing requirements of customers include commitments to extend credit and the unused portion of lines of credit (collectively “commitments”), which totaled $108.1 million at June 30, 2020. Historically, many of the commitments expire without being fully drawn; therefore, the total commitment amounts do not necessarily represent future cash requirements. We expect to fund these commitments from the sources of liquidity described above.
Customer withdrawals are also a principal use of liquidity, but are generally mitigated by growth in customer funding sources, such as deposits and short-term borrowings.
In addition to the foregoing, the payment of dividends is a use of cash, but is not expected to have a material effect on liquidity. As of June 30, 2020, we had no material commitments for capital expenditures.
Our ability to acquire deposits or borrow could be impaired by factors that are not specific to us, such as a severe disruption of the financial markets or negative views and expectations about the prospects for the financial services industry as a whole. Additionally, the origination volume of PPP loans could be a drain on our liquidity. As of June 30, 2020, we have not yet experienced any negative impact on our liquidity due to COVID-19. At June 30, 2020, management considered the Company’s liquidity level to be sufficient for the purposes of meeting our cash flow requirements. We are not aware of any undisclosed known trends, demands, commitments, or uncertainties that are reasonably likely to result in material changes in our liquidity.
We anticipate that our primary sources of liquidity over the next twelve months will be from loan repayments, maturing investments, deposit growth, and borrowed funds. We believe that these sources of liquidity will be sufficient for us to meet our liquidity needs over the next twelve months.
Off-Balance Sheet Arrangements and Derivatives
We enter into off-balance sheet arrangements in the normal course of business. These arrangements consist primarily of commitments to extend credit, lines of credit, and letters of credit. In addition, we have certain operating lease obligations.