v2.4.0.6

Fair Values of Financial Instruments (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Fair Values of Financial Instruments (Textual) [Abstract]
Appraisals value for both collateral-dependent impaired loans and other real estate owned		$ 250
Discount applied to properties		10.00%
Impaired financing receivable Carrying amount	897	897	1,062
Unpaid principal balances for impaired loans	3,088	3,088	6,425
Valuation allowances for impaired loans	368	368	350
Impact to the provision to loan losses from the change in the valuation allowances	0	127	230
Outstanding balance of other real estate owned	854	854	1,963
Valuation allowance of other real estate owned	323	323	422
Foreclosed real estate net carrying amount	531	531	1,541
Other real estate owned write down	0	75	212
Loan held for sale fair value valuation allowance	$ 0	$ 0	$ 0

Discount to properties with appraisal performed within twelve months.

+ References

No definition available.

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- Definition

Foreclosed real estate net carrying amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	cull_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Impaired financing receivable Carrying amount.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Impaired financing receivable valuation allowance.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Loan held for sale fair value valuation allowance.

+ References

No definition available.

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- Definition

Other real estate owned write down.

+ References

No definition available.

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- Definition

Outstanding balance of other real estate owned.

+ References

No definition available.

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- Definition

Valuation allowance of other real estate owned.

+ References

No definition available.

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- Definition

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524

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- Definition

Additions of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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No definition available.

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- Definition

Total increases or decreases in allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690

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Cullman Bancorp, Inc. 10-Q