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Income Taxes - Valuation allowance for deferred tax assets (Details 5) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015
Deferred Tax Assets Valuation Allowance [Roll Forward] |  |  |
Balance at beginning of period | $ 4,614 | $ 26,622 | $ 32,892
Provision for income taxes | (4,111) | (19,709) | (6,270)
Net operating loss utilization | (65) | (2,299) |
Balance at end of period | $ 438 | $ 4,614 | $ 26,622

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- Definition Represents Deferred tax assets Net operating loss utilization. + References No definition available. + Details
Name: | pahc_DeferredTaxAssetsNetOperatingLossUtilization
Namespace Prefix: | pahc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | pahc_DeferredTaxAssetsValuationAllowanceRollForward
Namespace Prefix: | pahc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References No definition available. + Details
Name: | pahc_ProvisionForIncomeTaxes
Namespace Prefix: | pahc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant