Presentation of Financial Information (Policies)

3 Months Ended

Mar. 31, 2013

Organization, Consolidation and Presentation Of Financial Statements [Abstract]

Use of Estimates, Policy [Policy Text Block]

     Use of Estimates-The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term include the determination of the allowance for loan losses.

Consolidation, Policy [Policy Text Block]

Consolidation-The accompanying consolidated financial statements include the accounts of Cornerstone and the Bank. Substantially all intercompany transactions, profits and balances have been eliminated.

Reclassification, Policy [Policy Text Block]

Reclassification-Certain amounts in the prior consolidated financial statements have been reclassified to conform to the current period presentation. The reclassifications had no effect on net income or stockholders’ equity as previously reported.

New Accounting Pronouncements, Policy [Policy Text Block]

Accounting Policies-During interim periods, Cornerstone follows the accounting policies set forth in its Annual Report on Form 10-K for the year ended December 31, 2012 as filed with the Securities and Exchange Commission. Since December 31, 2012, there have been no significant changes in any accounting principles or practices, or in the method of applying any such principles or practices, except for the following:

In February 2013, the Financial Accounting Standards Board (FASB) issued updated guidance related to disclosure of reclassification amounts out of other comprehensive income. The standard requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income statement line items affected by the reclassification. The new requirements took effect for public companies in fiscal years, and interim periods within those years, beginning after December 15, 2012. The Company adopted this standard on January 1, 2013. The effect of adopting this standard increases our disclosure requirements surrounding reclassification items out of accumulated other comprehensive income.

Earnings Per Share, Policy [Policy Text Block]

Earnings per Common Share- Basic earnings per share (“EPS”) is computed by dividing income available to common shareholders (numerator) by the weighted average number of common shares outstanding during the period (denominator). Diluted EPS is computed by dividing income available to common shareholders (numerator) by the adjusted weighted average number of shares outstanding (denominator). The adjusted weighted average number of shares outstanding reflects the potential dilution occurring if securities or other contracts to issue common stock were exercised or converted into common stock resulting in the issuance of common stock that share in the earnings of the entity.

The following is a summary of the basic and diluted earnings per share for the three month periods ended March 31, 2013 and March 31, 2012.

	Three Months Ended March 31,
Basic earnings per common share calculation:	2013		2012
Numerator: Net income available to common shareholders	$	59,283	$	76,193
Denominator: Weighted avg. common shares outstanding		6,547,074		6,500,396
Effect of dilutive stock options		123,499		85,425
Diluted shares		6,670,573		6,585,821
Basic earnings per common share	$	0.01	$	0.01
Diluted earnings per common share	$	0.01	$	0.01