Basis of Presentation (Policy)

6 Months Ended

Jun. 30, 2012

Basis Of Presentation [Abstract]

Consolidation, Policy [Policy Text Block]

The accompanying unaudited consolidated financial statements of DNB Financial Corporation (referred to herein as the "Corporation" or "DNB") and its subsidiary, DNB First, National Association (the "Bank") have been prepared in accordance with the instructions for Form 10-Q and therefore do not include certain information or footnotes necessary for the presentation of financial condition, statement of operations and statement of cash flows required by generally accepted accounting principles. However, in the opinion of management, the consolidated financial statements reflect all adjustments (which consist of normal recurring adjustments) necessary for a fair presentation of the results for the unaudited periods. Prior amounts not affecting net income are reclassified when necessary to conform to current period classifications. The results of operations for the three month and six month periods ended June 30, 2012 are not necessarily indicative of the results which may be expected for the entire year. The consolidated financial statements should be read in conjunction with the Annual Report and report on Form 10-K for the year ended December 31, 2011.

Subsequent Events [Policy Text Block]

Subsequent Events-- Management has evaluated events and transactions occurring subsequent to June 30, 2012 for items that should potentially be recognized or disclosed in these Consolidated Financial Statements. The evaluation was conducted through the date these financial statements were issued.