Name:	fnhc_AggregateCatastropheCoveragePerYearWithMaximumSingleEventCoverage
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Refers to the sharing of risks, as in quota share and surplus share reinsurance, in which the reinsured and the reinsurer participate pro rata in all losses beginning with the first dollar. The provisions of this program allow for profit-sharing up to approximately $32.0 million at the end of the two-year contract term. The ultimate benefit is based upon the occurrence of future catastrophic events and predefined non-catastrophic loss ratios.

No definition available.

Name:	fnhc_ContingentQuotaShareProfitSharing
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Refers to deferred amount for sharing of risks, as in quota share and surplus share reinsurance, in which the reinsured and the reinsurer participate pro rata in all losses beginning with the first dollar. The ultimate benefit is based upon the occurrence of future catastrophic events and predefined non-catastrophic loss ratios. This estimate, subject to future adjustments, will continue to be amortized over the remaining life of the quota-share program.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Related to required participate in certain insurer solvency associations under Florida Statutes. The regulatory environment of operation contains certain entities and organizations have the authority to require participate in assessments (such as, Florida Insurance Guaranty Association ("FIGA"), Citizens Property Insurance Corporation ("Citizens"), Florida Hurricane Catastrophe Fund ("FHCF") and Florida Joint Underwriters Insurance Association ("JUA")). As a direct premium writer in the state of Florida, we are required to participate in certain insurer solvency associations under Florida Statutes Section 631.57(3) (a), administered by FIGA.

No definition available.

Name:	fnhc_InsurerSolvencyAssociationRegulatoryAssessments
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Number of major categories the entity commitments and contingencies are grouped into.

No definition available.

Name:	fnhc_NumberOfMajorCategoriesEntityCommitmentsAndContingenciesAreGroupedInto
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Data Type:	xbrli:integerItemType
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Refers to percentage of quota share reinsurance treaty.

No definition available.

Name:	fnhc_PercentageOfQuotaShareReinsuranceTreaty
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Data Type:	num:percentItemType
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Period Type:	duration

Refers to the period of quota share reinsurance treaty.

No definition available.

Name:	fnhc_PeriodOfQuotaShareReinsuranceTreaty
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The unexpired portion of premiums ceded on policies in force as of the balance sheet date projected.

No definition available.

Name:	fnhc_PrepaidReinsurancePremiumsProjected
Namespace Prefix:	fnhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Reference to reinsurance program aggregate cost.

No definition available.

Name:	fnhc_ReinsuranceProgramAggregateCost
Namespace Prefix:	fnhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
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Data Type:	xbrli:stringItemType
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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Name:	us-gaap_DeferredTaxAssetsLiabilitiesNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of estimated liability as of the balance sheet date for the specific conflagration, earthquake, windstorm, explosion, or similar event.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 40

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6482485&loc=d3e14764-158437