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Statements of Operations-Additional Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Depreciation and amortization        
Depreciation of property, plant and equipment $ 4,123us-gaap_Depreciation $ 4,106us-gaap_Depreciation $ 8,351us-gaap_Depreciation $ 7,958us-gaap_Depreciation
Amortization of intangible assets 1,057us-gaap_AmortizationOfIntangibleAssets 1,186us-gaap_AmortizationOfIntangibleAssets 2,126us-gaap_AmortizationOfIntangibleAssets 2,535us-gaap_AmortizationOfIntangibleAssets
Amortization of other assets 61pahc_AmortizationOfOtherAssets    117pahc_AmortizationOfOtherAssets   
Depreciation and amortization $ 5,241us-gaap_DepreciationDepletionAndAmortization $ 5,292us-gaap_DepreciationDepletionAndAmortization $ 10,594us-gaap_DepreciationDepletionAndAmortization $ 10,493us-gaap_DepreciationDepletionAndAmortization