The Company's capital position remains substantially in excess of regulatory requirements for well capitalized status, with a total risk based capital ratio of 12.19% at December 31, 2012, as compared to a total risk based capital ratio of 11.84% at December 31, 2011. The combination of strong earnings over the twelve months ended December 31, 2012, the At the Market and Underwritten Offering capital raises noted above and issuances under stock options and employee stock purchase plans have enabled the Company to increase regulatory capital ratios, while continuing substantial balance sheet growth. In addition, the tangible common equity ratio (tangible common equity to tangible assets) increased to 8.50% at December 31, 2012, from 7.29% at December 31, 2011. As compared to September 30, 2012, the tangible common equity ratio declined by 38 basis points due to substantial growth in total assets in the fourth quarter of 2012.
At December 31, 2012, the Company's nonperforming assets amounted to $36.0 million, representing 1.06% of total assets, compared to $36.0 million of nonperforming assets, or 1.27% of total assets at December 31, 2011 and $37.3 million of nonperforming assets, or 1.25% of total assets at September 30, 2012. Management remains attentive to early signs of deterioration in borrowers' financial conditions and is proactive in taking the appropriate steps to mitigate risk. Furthermore, the Company is diligent in placing loans on nonaccrual status and believes, based on its loan portfolio risk analysis, that its allowance for loan losses, at 1.50% of total loans (excluding loans held for sale) at December 31, 2012, is adequate to absorb potential credit losses within the loan portfolio at that date. The allowance for credit losses represented 122% of nonperforming loans at December 31, 2012, as compared to 90% at December 31, 2011 and 110% at September 30, 2012, respectively. Included in nonperforming assets at December 31, 2012 were $5.3 million of other real estate owned ("OREO") as compared to $3.2 million at December 31, 2011 and $4.9 million at September 30, 2012.