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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