Regulatory Capital Matters (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Future percent of common equity to risk-weighted assets	2.50%
Tier 1 (Core) Capital	5.00%	5.00%
Total capital to risk weighted assets	10.00%	10.00%
Percent of Qualified Thrift Lender test requires		65.00%
Opening balance in liquidation account	$ 14,300
CF Bank [Member]
Tier 1 (Core) Capital	8.00%	8.00%
Total capital to risk weighted assets	12.00%	12.00%

Future percent, additional amount of common equity of risk-weighted assets

No definition available.

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- Definition

Minimum percentage of assets to be maintained in housing-related finance and other specified areas as per qualified thrift lender test.

+ References

No definition available.

+ Details

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- Definition

Opening balance in liquidation account.

+ References

No definition available.

+ Details

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- Definition

The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826

+ Details

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- Definition

The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

+ References

+ Details

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- Details

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