Stockholders’ Equity. Stockholders' equity decreased $1.5 million, or 1.4%, to $106.7 million at September 30, 2023. The decrease was primarily due to a $3.4 million increase in accumulated other comprehensive loss primarily reflecting valuation changes in our available-for-sale securities portfolio due to current financial market conditions, the repurchase of 200,000 shares of the Company’s stock, totaling $1.4 million, and a reduction in retained earnings of $633,000 due to the adoption of the current expected credit loss standard on January 1, 2023. These decreases were partially offset by our net income for the first nine months of 2023 of $3.5 million. At September 30, 2023, the Company’s book value per share was $9.63 and the Company’s ratio of stockholders’ equity-to-total assets was 8.11%. At December 31, 2022, the Company’s book value per share was $9.58 and the Company’s ratio of stockholders’ equity-to-total assets was 8.09%. Unearned common stock held by the Bank’s employee stock ownership plan was $3.3 million and $3.5 million at September 30, 2023 and December 31, 2022, respectively.
Comparison of Operating Results for the Three and Nine Months Ended September 30, 2023 and 2022
Net Income. Net income for the three months ended September 30, 2023 decreased $871,000, or 41.3%, to $1.2 million, or $0.11 per diluted share, compared to net income of $2.1 million, or $0.19 per diluted share, for the three months ended September 30, 2022. Interest and dividend income increased $3.0 million, or 23.7%, interest expense increased $4.4 million, or 303.6%, the provision for credit losses increased $365,000, non-interest income increased $257,000, or 18.5%, non-interest expense decreased $424,000, or 4.6%, and taxes decreased $252,000, or 42.4%, between comparable quarters.
Net income for the nine months ended September 30, 2023 decreased $2.7 million, or 44.0%, to $3.5 million, or $0.32 per diluted share, compared to net income of $6.2 million, or $0.56 per diluted share, for the nine months ended September 30, 2022. Interest and dividend income increased $9.8 million, or 27.8%, interest expense increased $13.1 million, or 409.8%, the provision for credit losses increased $360,000, or 32.4%, non-interest income decreased $223,000, or 4.8%, non-interest expense decreased $522,000, or 1.9%, and taxes decreased $593,000, or 38.2%, between comparable periods.
Net Interest Income. Net interest income decreased $1.4 million, or 13.0%, to $9.7 million for the three months ended September 30, 2023, compared to $11.1 million for the quarter ended September 30, 2022. The ratio of average interest-earning assets to average interest-bearing liabilities decreased 6.8% to 132.95% while our net interest margin decreased by 52 basis points to 3.09% when comparing the third quarter of 2023 to the same quarter in 2022.
Net interest income decreased $3.3 million, or 10.2%, to $28.8 million for the nine months ended September 30, 2023, compared to $32.1 million for the nine months ended September 30, 2022. The ratio of average interest-earning assets to average interest-bearing liabilities decreased 6.6% to 134.08% while our net interest margin decreased by 46 basis points to 3.09% when comparing the first nine months of 2023 to the same period in 2022.
Interest Income. Interest income increased $3.0 million, or 23.7%, to $15.5 million for the three months ended September 30, 2023 from $12.6 million for the comparable 2022 period primarily due to the rising interest rate environment and an increase in the average balance of loans. For the three months ended September 30, 2023, the average balance of loans increased $55.9 million, while the average balance of available for sale securities decreased $38.8 million when compared to the three months ended September 30, 2022. The average yield on loans increased 81 basis points, while the average yield on available for sale securities increased 14 basis points. The overall average yield of interest-earning assets increased by 88 basis points to 4.96% and the overall average balance of interest-earning assets increased $22.2 million, or 1.8%.
Interest income increased $9.8 million, or 27.8%, to $45.1 million for the nine months ended September 30, 2023 from $35.3 million for the comparable 2022 period primarily due to the rising interest rate environment and an increase in the average balance of loans. For the nine months ended September 30, 2023, the average balance of loans increased $99.3 million, while the average balance of available for sale securities decreased $51.9 million when compared to the nine months ended September 30, 2022. The average yield on loans increased 68 basis points and the average yield on interest bearing depository accounts increased 426 basis points, while the average yield on available for sale securities increased 45 basis points. The overall average yield of interest-earning assets increased by 92 basis points to 4.83% and the overall average balance of interest-earning assets increased $41.5 million, or 3.4%.