Principles of consolidation

6 Months Ended

Jun. 30, 2011

Principles of consolidation [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Principles of consolidation

The accompanying consolidated financial statements include the accounts of City National Bancshares Corporation (the "Corporation or CNBC") and its subsidiaries, City National Bank of New Jersey (the "Bank" or “CNB”) and City National Bank of New Jersey Capital Trust II. All intercompany accounts and transactions have been eliminated in consolidation.