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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Aug. 20, 2012 | Dec. 31, 2012 D Segment | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 05, 2008
Significant Accounting Policies [Line Items] |  |  |  |  |
Sale of common stock | 15,000,000 | 15,936,417 | 937,417 |  |
Common stock price per share | $ 1.50 |  |  |  |
Net proceeds from issuance of common stock | $ 20,221 | $ 20,221 |  |  |
Issuance of common stock, offering costs | 2,279 |  |  |  |
Maturity of cash, deposits with other financial institutions |  | Fewer than 90 days |  |  |
Delinquent time of loan |  | 90 days |  |  |
Charge off of consumer loans, period |  | 90 days |  |  |
Nonaccrual loans and loans past due |  | 90 days |  |  |
Balances of loans of all other classes while impairment evaluation |  | 500 |  |  |
Loans individually evaluated for impairment, number of days past due |  | 90 |  |  |
Fixed rates loans limit |  | three to five years |  |  |
Maturity of construction loans convert to permanent loans |  | 30 years |  |  |
Home equity lines of credit combined with the balance of the prior mortgage liens |  | 89.90% |  |  |
The collateral values associated with certain loans declined |  | 50.00% |  |  |
Loan servicing fees |  | 26 | 22 | 21 |
Estimated life of intangible asset |  | 4 years 6 months |  |  |
Tax benefit greater than being realized on examination |  | 50.00% |  |  |
Cash on deposit pledged as collateral for FHLB advances |  | 24,077 | 28,883 |  |
Shares of Central Federal Corporation Fixed Rate Cumulative Perpetual Preferred Stock issued by Company |  |  |  |  | 7,225
Number of reportable operating segment |  | 1 |  |  |
Minimum [Member] | Land, buildings and improvements [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  | 3 years |  |  |
Minimum [Member] | Furniture, fixtures and equipment [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  | 2 years |  |  |
Maximum [Member] | Land, buildings and improvements [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  | 40 years |  |  |
Maximum [Member] | Furniture, fixtures and equipment [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  | 25 years |  |  |
Single-family residential [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Residential real estate loan amount for portfolio |  | 85.00% |  |  |
Commercial real estate loans [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Residential real estate loan amount for portfolio |  | 75.00% |  |  |
Construction loans [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Residential real estate loan amount for portfolio |  | 75.00% |  |  |
Cash [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Cash on deposit pledged as collateral for FHLB advances |  | $ 3,300 | $ 800 |  |
Multi-family residential [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Residential real estate loan amount for portfolio |  | 75.00% |  |  |

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