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Valuation and Qualifying Accounts (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period $ 1,431 $ 2,202 $ 2,178
Charged to Costs and Expenses 585 (521) 24
Charged to Other Accounts (666) (250) 0
Deductions (465) 0 0
Balance at End of Period 885 1,431 2,202
Allowance for Doubtful Accounts [Member]
      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 1,201 1,428 1,404
Charged to Costs and Expenses 725 23 24
Charged to Other Accounts (666) [1] (250) [1] 0
Deductions (465) [2] 0 0
Balance at End of Period 795 1,201 1,428
Valuation Allowance of Deferred Tax Assets [Member]
      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 230 774 774
Charged to Costs and Expenses (140) (544) [3] 0
Charged to Other Accounts 0 0 0
Deductions 0 0 0
Balance at End of Period $ 90 $ 230 $ 774
[1] Collection of a fully reserved receivable recognized as revenue.
[2] Receivables written off against allowance for doubtful accounts.
[3] Release of the valuation allowance on foreign tax credit carryovers which have now been determined to be utilizable.