Nature of Business and Basis of Presentation	6 Months Ended
Jun. 30, 2011
Business Description and Basis Of Presentation [Abstract]
Nature of Business and Basis of Presentation	NOTE 1 - Nature of Business and Basis of Presentation Business activity Southern First Bancshares, Inc. (the "Company") is a South Carolina corporation that owns all of the capital stock of Southern First Bank, N.A. (the "Bank") and all of the stock of Greenville First Statutory Trust I and II (collectively, the "Trusts"). On July 2, 2007, the Company and Bank changed their names to Southern First Bancshares, Inc. and Southern First Bank, N.A., respectively. The Bank is a national bank organized under the laws of the United States located in Greenville County, South Carolina and operates as Greenville First Bank in Greenville County. The Bank is primarily engaged in the business of accepting demand deposits and savings deposits insured by the Federal Deposit Insurance Corporation (the "FDIC"), and providing commercial, consumer and mortgage loans to the general public. The Trusts are special purpose non-consolidated entities organized for the sole purpose of issuing trust preferred securities. Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q. Accordingly, they do not include all the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six month periods ended June 30, 2011 are not necessarily indicative of the results that may be expected for the year ending December 31, 2011. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2010 (Registration Number 000-27719) as filed with the Securities and Exchange Commission on March 7, 2011. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, the Bank. In accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 810, "Consolidation," the financial statements related to the special purpose subsidiaries, the Trusts, have not been consolidated. Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amount of income and expenses during the reporting periods. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, fair value of financial instruments, evaluating other-than-temporary-impairment of investment securities and valuation of deferred tax assets. Reclassifications Certain amounts, previously reported, have been reclassified to state all periods on a comparable basis that had no effect on shareholders' equity or net income. Formal Agreement with the Office of the Comptroller of the Currency On June 8, 2010, the Bank entered into a formal agreement (the "Formal Agreement") with its primary regulator, the Office of the Comptroller of the Currency (the "OCC"). The Formal Agreement seeks to enhance the Bank's existing practices and procedures in the areas of credit risk management, credit underwriting, liquidity, and funds management. The Board of Directors and management of the Bank have aggressively worked to address the findings of the exam and believe the Company is currently in compliance with substantially all of the requirements of the Formal Agreement. See "Management's Discussion and Analysis of Financial Condition and Results of Operations" for more discussion of the Formal Agreement. Subsequent Events Subsequent events are events or transactions that occur after the balance sheet date but before financial statements are issued. Recognized subsequent events are events or transactions that provide additional evidence about conditions that existed at the date of the balance sheet, including the estimates inherent in the process of preparing financial statements. Non-recognized subsequent events are events that provide evidence about conditions that did not exist at the date of the balance sheet but arose after that date. Management performed an evaluation to determine whether there have been any subsequent events since the balance sheet date and determined that no subsequent events occurred requiring accrual or disclosure. Accounting Developments In July 2010, the Receivables topic of the Accounting Standards Codification ("ASC") was amended by Accounting Standards Update ("ASU") 2010-20 to require expanded disclosures related to a company's allowance for credit losses and the credit quality of its financing receivables. The amendments require the allowance disclosures to be provided on a disaggregated basis. The Company is required to include these disclosures in their interim and annual financial statements. See Note 3.

NOTE 1 - Nature of Business and Basis of Presentation

Business activity

Southern First Bancshares, Inc. (the "Company") is a South Carolina corporation that owns all of the capital stock of Southern First Bank, N.A. (the "Bank") and all of the stock of Greenville First Statutory Trust I and II (collectively, the "Trusts"). On July 2, 2007, the Company and Bank changed their names to Southern First Bancshares, Inc. and Southern First Bank, N.A., respectively. The Bank is a national bank organized under the laws of the United States located in Greenville County, South Carolina and operates as Greenville First Bank in Greenville County. The Bank is primarily engaged in the business of accepting demand deposits and savings deposits insured by the Federal Deposit Insurance Corporation (the "FDIC"), and providing commercial, consumer and mortgage loans to the general public. The Trusts are special purpose non-consolidated entities organized for the sole purpose of issuing trust preferred securities.

Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q. Accordingly, they do not include all the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six month periods ended June 30, 2011 are not necessarily indicative of the results that may be expected for the year ending December 31, 2011. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2010 (Registration Number 000-27719) as filed with the Securities and Exchange Commission on March 7, 2011. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, the Bank. In accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 810, "Consolidation," the financial statements related to the special purpose subsidiaries, the Trusts, have not been consolidated.

Use of Estimates

The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amount of income and expenses during the reporting periods. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, fair value of financial instruments, evaluating other-than-temporary-impairment of investment securities and valuation of deferred tax assets.

Reclassifications

Certain amounts, previously reported, have been reclassified to state all periods on a comparable basis that had no effect on shareholders' equity or net income.

Formal Agreement with the Office of the Comptroller of the Currency

On June 8, 2010, the Bank entered into a formal agreement (the "Formal Agreement") with its primary regulator, the Office of the Comptroller of the Currency (the "OCC"). The Formal Agreement seeks to enhance the Bank's existing practices and procedures in the areas of credit risk management, credit underwriting, liquidity, and funds management. The Board of Directors and management of the Bank have aggressively worked to address the findings of the exam and believe the Company is currently in compliance with substantially all of the requirements of the Formal Agreement. See "Management's Discussion and Analysis of Financial Condition and Results of Operations" for more discussion of the Formal Agreement.

Subsequent Events

Subsequent events are events or transactions that occur after the balance sheet date but before financial statements are issued. Recognized subsequent events are events or transactions that provide additional evidence about conditions that existed at the date of the balance sheet, including the estimates inherent in the process of preparing financial statements. Non-recognized subsequent events are events that provide evidence about conditions that did not exist at the date of the balance sheet but arose after that date. Management performed an evaluation to determine whether there have been any subsequent events since the balance sheet date and determined that no subsequent events occurred requiring accrual or disclosure.

Accounting Developments

In July 2010, the Receivables topic of the Accounting Standards Codification ("ASC") was amended by Accounting Standards Update ("ASU") 2010-20 to require expanded disclosures related to a company's allowance for credit losses and the credit quality of its financing receivables. The amendments require the allowance disclosures to be provided on a disaggregated basis. The Company is required to include these disclosures in their interim and annual financial statements. See Note 3.