Refers to the vesting percentage for elective contributions.

No definition available.

Name:	fnhc_DefinedContributionPlanAnnualVestingPercentage
Namespace Prefix:	fnhc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Refers to the percentage of first elective contributions to match with entity's contributions percentage.

+ References

No definition available.

+ Details

Name:	fnhc_PercentageOfFirstElectiveContributions
Namespace Prefix:	fnhc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Refers to the percentage of next elective contributions to match with entity's contributions percentage.

+ References

No definition available.

+ Details

Name:	fnhc_PercentageOfNextElectiveContributions
Namespace Prefix:	fnhc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum period that the individual is required to perform services in order to be fully vested under the employee benefit plan.

+ References

No definition available.

+ Details

Name:	fnhc_RequisiteServicePeriodForVesting
Namespace Prefix:	fnhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Definition

Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

+ References

No definition available.

+ Details

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

- Definition

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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

EMPLOYEE BENEFIT PLAN (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
EMPLOYEE BENEFIT PLAN [Abstract]
Eligible employees to contribution, percentage (in hundredths)	100.00%
Entity's matching contribution	$ 0.1	$ 0.1	$ 0.1
Entity's matching contribution percentage of elective contributions (in hundredths)			50.00%
Percentage of first elective contributions (in hundredths)	1.00%		6.00%
Employers matching contribution percentage (in hundredths)	100.00%		50.00%
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan vesting percentage (in hundredths)	100.00%
Requisite service period for vesting	2 years
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of next elective contributions (in hundredths)	2.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of next elective contributions (in hundredths)	6.00%