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Financial Instruments (Narrative) (Detail)
$ in Thousands
12 Months Ended
Jun. 30, 2015
USD ($)
Customer
Jun. 30, 2014
USD ($)
Customer
Jun. 30, 2013
Customer
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Open letters of credit | $ $ 21 $ 251  
Accounts Receivable      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Number of customers exceeding a 10% benchmark 2 2  
Europe      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Net assets by geographic area | $ $ 57,161 $ 69,129  
Asia      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Net assets by geographic area | $ $ 47,097 $ 45,668  
Customer One | Accounts Receivable      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Percentage of net trade accounts receivable attributable to single customer 40.00% 16.00%  
Customer One | Net sales      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Percentage of net sales attributable to single customer 13.00%    
Customer Two | Accounts Receivable      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Percentage of net trade accounts receivable attributable to single customer 21.00% 13.00%  
Product Concentration | Net sales      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Number of customers exceeding a 10% benchmark 0 0 0
Minimum percentage of net sales for separate disclosure 10.00% 10.00% 10.00%
Customer Concentration | Net sales      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Number of customers exceeding a 10% benchmark 1 0 0
Minimum percentage of net sales for separate disclosure 10.00% 10.00% 10.00%
Geographic Concentration | Europe | Purchases      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Percentage of purchases for a single geographic area 12.00% 14.00% 13.00%
Geographic Concentration | Asia | Purchases      
Financial Instruments Owned and Pledged as Collateral [Line Items]      
Percentage of purchases for a single geographic area 65.00% 64.00% 68.00%