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Business and Accounting Policies (Details) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2013 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Net impact of lag elimination | $ 0 | $ 1,342 |
Share Based Compensation Arrangement By Share Based Payment Award Options And Stock Appreciation Rights Vested And Expected To Vest Exercisable Average Contractual Term | 10 years |  |
Unamortized debt issuance costs | $ 622 | 703 |
Business and Accounting Policies (Textuals) [Abstract] |  |  |
Company's domestic inventory relate to LIFO layers | 22.10% |  |
Number of LIFO pools maintained (in pools) | 5 |  |
Shipping, Handling and Transportation Costs | $ 24,430 | 16,230 | $ 15,560
Vesting period of SARs and stock option awards | 4 years |  |
Net Sales Impact [Member] [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Net impact of lag elimination |  | 200 |
Impact of Retrospective Adjustment |  | 1,100 | 900
Operating Income Impact [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Impact of Retrospective Adjustment |  | 100 | 400
Net Income Impact [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Impact of Retrospective Adjustment |  | 250 | 250
Net Sales Impact [Member] [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Net impact of lag elimination |  | 1,200 |
Impact of Retrospective Adjustment |  |  | 1,050
Operating Income Impact [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Impact of Retrospective Adjustment |  |  | 600
Net Income Impact [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Impact of Retrospective Adjustment |  | $ 1,200 | $ 500
Buildings,BuildingsImprovementsandLeaseholdImprovementsMinimumUsefulLife[Member] [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 10 years |  |
Buildings,BuildingsImprovementsandLeaseholdImprovements MaximumUsefulLife[Member} [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 30 years |  |
PropertyandEquipmentMinimumUsefulLife[Member] [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |
PropertyandEquipmentMaximumUsefulLife [Member] [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 10 years |  |
Computer Software, Intangible Asset [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Finite-Lived Intangible Asset, Useful Life | 12 years |  |

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