Supplemental Balance Sheet Information (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
Property, Plant and Equipment
Accumulated depreciation	$ (35,882,000)	$ (32,773,000)
Property, equipment and leasehold improvements-net	7,588,000	7,829,000
Asset retirement obligations
Balance of asset retirement obligations	600,000	600,000
Computer equipment
Property, Plant and Equipment
Property, equipment and leasehold improvements-at cost	11,772,000	11,106,000
Purchased software
Property, Plant and Equipment
Property, equipment and leasehold improvements-at cost	23,720,000	21,642,000
Furniture and fixtures
Property, Plant and Equipment
Property, equipment and leasehold improvements-at cost	4,530,000	4,475,000
Leasehold improvements
Property, Plant and Equipment
Property, equipment and leasehold improvements-at cost	$ 3,448,000	$ 3,379,000