Number of hours in period.

No definition available.

Name:	pih_NumberOfHoursInPeriod
Namespace Prefix:	pih_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of quota-share of wind/hail premiums.

+ References

No definition available.

+ Details

Name:	pih_QuotashareOfWindhailPremiums
Namespace Prefix:	pih_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of reinsurance recoveries per risk.

+ References

No definition available.

+ Details

Name:	pih_ReinsuranceRecoveriesForEachRisk
Namespace Prefix:	pih_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The minimum amount of an insured event used for additional reinsurance coverage.

+ References

No definition available.

+ Details

Name:	pih_ReinsuranceRetentionPolicyEventAmount
Namespace Prefix:	pih_
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 (c)(2)
-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

+ 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

Amount of risk reinsured in excess of stated retention per company policy.

+ References

No definition available.

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_MajorCustomersAxis=pih_BrotherhoodMutualInsuranceCompanyMember
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_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=pih_TexasWindstormInsuranceAssociationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=pih_ExcessOfLossTreaty1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=pih_ExcessOfLossTreaty2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=pih_ExcessOfLossTreaty4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=pih_ExcessOfLossTreaty3Member
Namespace Prefix:
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Period Type:

Reinsurance (Details Narrative) $ in Thousands	3 Months Ended		12 Months Ended
Reinsurance (Details Narrative) $ in Thousands	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	May 31, 2017 USD ($) Number	May 31, 2016 USD ($) Number
Reinsurance Retention Policy [Line Items]
Ceded written premiums	$ 5,876	$ 3,571
Assumed premiums written	847	398
Brotherhood Mutual Insurance Company [Member]
Reinsurance Retention Policy [Line Items]
Assumed premiums written	$ 429	398
Brotherhood Mutual Insurance Company [Member] \| Minimum [Member]
Reinsurance Retention Policy [Line Items]
Percentage of quota-share of wind/hail premiums	25.00%
Brotherhood Mutual Insurance Company [Member] \| Maximum [Member]
Reinsurance Retention Policy [Line Items]
Percentage of quota-share of wind/hail premiums	100.00%
Texas Windstorm Insurance Association [Member]
Reinsurance Retention Policy [Line Items]
Percentage of quota-share of wind/hail premiums	100.00%
Assumed premiums written	$ 419
Per-Risk Treaty [Member]
Reinsurance Retention Policy [Line Items]
Excess retention amount reinsured	250
Reinsurance recoveries for each risk	1,750
Ceded written premiums	114	109
Excess of Loss Treaty 1 [Member]
Reinsurance Retention Policy [Line Items]
Excess retention amount reinsured				$ 4,000
Reinsurance recoveries for each risk				$ 121,000
Number of hours in period \| Number				144
Excess of Loss Treaty 1 [Member] \| Minimum [Member]
Reinsurance Retention Policy [Line Items]
Reinsurance event amount				$ 125,000
Excess of Loss Treaty 1 Additional Coverage [Member]
Reinsurance Retention Policy [Line Items]
Excess retention amount reinsured				$ 15,000
Excess of Loss Treaty 2 [Member] \| Subsequent Event [Member]
Reinsurance Retention Policy [Line Items]
Excess retention amount reinsured			$ 5,000
Reinsurance recoveries for each risk			$ 170,000
Number of hours in period \| Number			144
Excess of Loss Treaty 2 [Member] \| Subsequent Event [Member] \| Minimum [Member]
Reinsurance Retention Policy [Line Items]
Reinsurance event amount			$ 175,000
Excess of Loss Treaty 2 Additional Coverage [Member] \| Subsequent Event [Member]
Reinsurance Retention Policy [Line Items]
Aggregate loss retained			$ 25,000
Excess of Loss Treaties (Combined) [Member]
Reinsurance Retention Policy [Line Items]
Ceded written premiums	$ 5,762	$ 3,462