Property and Equipment (Details) - USD ($)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Property and Equipment
Property and equipment, gross	$ 63,301,000	$ 56,598,000
Less accumulated depreciation	(47,047,000)	(42,249,000)
Property and equipment, net	16,254,000	14,349,000
Depreciation expense	5,513,000	4,598,000	$ 4,641,000
Leasehold improvements
Property and Equipment
Property and equipment, gross	32,355,000	28,464,000
Machinery and equipment
Property and Equipment
Property and equipment, gross	18,398,000	16,724,000
Computer hardware and software
Property and Equipment
Property and equipment, gross	6,897,000	5,846,000
Furniture and fixtures
Property and Equipment
Property and equipment, gross	3,290,000	1,876,000
Assets under construction
Property and Equipment
Property and equipment, gross	2,361,000	3,688,000
Equipment under capital leases
Property and Equipment
Less accumulated depreciation	(190,000)	(50,000)
Property and equipment, net	$ 724,000	$ 574,000