Written premiums the Company returned to the cedent for cancelled policies and policy adjustments.

No definition available.

Name:	cnfr_ReturnOfPremiums
Namespace Prefix:	cnfr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of written premiums assumed from other entities.

+ References

+ Details

Name:	us-gaap_AssumedPremiumsWritten
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of written premiums ceded to other entities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 605

-Section 50

-Paragraph 1

-Subparagraph (b),(c)(2)

-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

-Article 12

+ Details

Name:	us-gaap_CededPremiumsWritten
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Stated amount that is the upper retention limit per entity policy.

+ References

No definition available.

+ Details

Name:	us-gaap_ReinsuranceRetentionPolicyAmountRetained
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of risk reinsured on insurance products per entity policy.

+ References

No definition available.

+ Details

Name:	us-gaap_ReinsuranceRetentionPolicyReinsuredRiskPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=cnfr_QuotaShareReinsuranceAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=cnfr_SubjectPremiumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=cnfr_RelatedLossesWithinRetentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=cnfr_Assumption2014Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CounterpartyNameAxis=cnfr_CitizensPropertyAndCasualtyCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=cnfr_Assumption2015Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=cnfr_InsuranceFrontingArrangementMember
Namespace Prefix:
Data Type:	na
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Period Type:

Note 7 - Reinsurance (Details Textual) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
Note 7 - Reinsurance (Details Textual) - USD ($)	Jan. 31, 2015	Dec. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Maximum [Member] \| Quota Share Reinsurance Agreement [Member]
Reinsurance Retention Policy, Amount Retained					$ 500,000
Maximum [Member]
Reinsurance Retention Policy, Amount Retained					500,000		$ 300,000
Minimum [Member] \| Quota Share Reinsurance Agreement [Member]
Reinsurance Retention Policy, Amount Retained					$ 0
Quota Share Reinsurance Agreement [Member] \| Subject Premium [Member]
Reinsurance Retention Policy, Reinsured Risk, Percentage					25.00%
Quota Share Reinsurance Agreement [Member] \| Related Losses Within Retention [Member]
Reinsurance Retention Policy, Reinsured Risk, Percentage					25.00%
Quota Share Reinsurance Agreement [Member]
Ceded Premiums Written					$ 9,500,000
2014 Assumption [Member] \| Citizens Property and Casualty Corporation [Member]
Return of Premiums					1,300,000
2015 Assumption [Member] \| Citizens Property and Casualty Corporation [Member]
Return of Premiums					702,000
Insurance Fronting Arrangement [Member]
Assumed Premiums Written			$ 1,200,000		3,400,000
Citizens Property and Casualty Corporation [Member]
Assumed Premiums Written	$ 1,400,000	$ 5,500,000
Ceded Premiums Written			(4,357,000)	$ 2,695,000	10,298,000	$ 5,962,000
Assumed Premiums Written			$ 1,804,000		$ 3,438,000