Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013
Property, Plant and Equipment [Line Items]
Property and equipment	$ 43,325	$ 43,264
Less: accumulated depreciation and amortization	(34,448)	(34,059)
Property and equipment, net	8,877	9,205
Land
Property, Plant and Equipment [Line Items]
Property and equipment	393	393
Building and Building Improvements
Property, Plant and Equipment [Line Items]
Property and equipment	2,793	2,793
Building and Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	7 years	7 years
Building and Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	39 years	39 years
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property and equipment	26,018	26,141
Machinery and Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	3 years	3 years
Machinery and Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	12 years	12 years
Office equipment and furniture
Property, Plant and Equipment [Line Items]
Property and equipment	3,118	3,030
Office equipment and furniture | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	3 years	3 years
Office equipment and furniture | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	5 years	5 years
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	3 years	3 years
Property and equipment	209	136
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment	$ 10,794	$ 10,771
Leasehold Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	1 year	1 year
Leasehold Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	15 years	15 years