additional paid-in capital as a result of option exercises during the first quarter. The increase was partially offset by the impact of the Company’s adoption of ASC 326 on January 1, 2023.
In August of 2022, the Company’s Board of Directors authorized the extension of the Company’s stock repurchase program that was originally adopted in August of 2021. Under the stock repurchase program, the Company may repurchase up to 700,000 shares of its outstanding common stock, or 5.0% of outstanding shares as of March 31, 2023. The stock repurchase program will expire on August 31, 2023 or earlier if all the authorized shares have been repurchased. The Company has not repurchased any of its outstanding common stock under the program as of March 31, 2023.
Liquidity
Liquidity reflects a financial institution’s ability to fund assets and meet current and future financial obligations. Liquidity is essential in all banks to meet customer withdrawals, compensate for balance sheet fluctuations, and provide funds for growth. Monitoring and managing both liquidity measurements is critical in developing prudent and effective balance sheet management. Management conducts liquidity stress testing on a quarterly basis to prepare for unexpected adverse scenarios and contemporaneously develops mitigating strategies to reduce losses in the event of an economic downturn.
The Company’s principal source of liquidity and funding is its deposit base. The level of deposits necessary to support the Company’s lending and investment activities is determined through monitoring loan demand. In addition to the liquidity provided by balance sheet cash flows, the Company supplements its liquidity with additional sources such as secured borrowing credit lines with the FHLB and the Reserve Bank. Specifically, the Company has pledged a portion of its commercial real estate and residential real estate loan portfolios to the FHLB and the Reserve Bank. Based on collateral pledged as of March 31, 2023, the total FHLB available borrowing capacity was $423.1 million. Additional borrowing capacity with the Reserve Bank was approximately $28.0 million as of March 31, 2023.
Total liquidity, defined as cash and cash equivalents, unencumbered securities at fair value, and available secured borrowing capacity, was $852.6 million at March 31, 2023 compared to $763.5 million at December 31, 2022. On March 12, 2023, the Federal Reserve made available the BTFP which enhances the ability of banks to borrow greater amounts against certain high-quality, unencumbered investments. To date, while the Company has been approved to participate in the BTFP, we have chosen not to do so. If the Company were to avail itself of the BTFP, we estimate an incremental increase in our liquidity position of approximately $35.2 million.
In addition to available secured borrowing capacity, the Company had available federal funds lines with correspondent banks of $110.0 million at March 31, 2023.
Liquidity is a core pillar of the Company’s operations. Conditions may arise in the future that could negatively impact the Company’s future liquidity position resulting in funding mismatches. These include market constraints on the ability to convert assets into cash or accessing sources of funds (i.e., market liquidity) and contingent liquidity events. Changes in economic conditions or exposure to credit, market, operational, legal, and reputation risks also can affect a bank’s liquidity. Management maintains that the Company has a strong liquidity position, any of the factors referenced above could materially impact that in the future.
Off-Balance Sheet Arrangements
The Company enters into certain off-balance sheet arrangements in the normal course of business to meet the financing needs of its customers. These off-balance sheet arrangements include commitments to extend credit, standby letters of credit and financial guarantees which would impact the Company’s liquidity and capital resources to the extent customers accept and or use these commitments. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the balance sheet. With the exception of these off-balance sheet arrangements, the Company has no off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on the Company’s financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources, that is material to investors. For further information, see Note 7 to the Consolidated Financial Statements, included in Item 1 of this Form 10-Q, for further discussion of the nature, business purpose and elements of risk involved with these off-balance sheet arrangements.
Item 3. Quantitative and Qualitative Disclosures About Market Risk
Not required for smaller reporting companies.