Property, Plant and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Jun. 30, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 38,424	$ 38,359
Less: accumulated depreciation and amortization	31,364	31,112
Property, plant and equipment, net	7,060	7,247
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	904	904
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,911	8,911
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	30 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Molds and dies [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6,757	6,748
Molds and dies [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Molds and dies [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,320	2,317
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	19,160	19,107
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	7 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	Shorter of the lease term or life of asset
Property, plant and equipment, gross	$ 372	$ 372