Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2012	Jun. 30, 2012
Property, Plant and Equipment [Line Items]
Property and equipment	42,534	42,320
Less: accumulated depreciation and amortization	(32,409)	(31,673)
Property and equipment, net	10,125	10,647
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	2,775	2,756
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	26,015	25,876
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
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and equipment	3,030	3,023
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, depreciable life in years	3 years	3 years
Furniture and Fixtures | 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	136	136
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment	10,185	10,136
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