Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Assets and Liabilities Carried at Fair Value by Classification Level in Valuation Hierarchy (Details)

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Fair Value Measurements - Assets and Liabilities Carried at Fair Value by Classification Level in Valuation Hierarchy (Details) (Recurring, USD $)
Jun. 30, 2012
Jun. 30, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash $ 2,700,000  
Cash equivalents 38,600,000  
Level 1
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 41,215,000 20,417,000
Securities available for sale 155,000 238,000
Assets 41,370,000 20,655,000
Contingent consideration payable 0  
Level 2
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Securities available for sale 0 0
Assets 0 0
Contingent consideration payable 0  
Level 3
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Securities available for sale 0 0
Assets 0 0
Contingent consideration payable 4,072,000  
Estimate of Fair Value
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 41,215,000 20,417,000
Securities available for sale 155,000 238,000
Assets 41,370,000 20,655,000
Contingent consideration payable $ 4,072,000