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Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
6 Months Ended
Dec. 31, 2015
Jun. 30, 2015
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 40,289 $ 40,018
Less: accumulated depreciation and amortization 34,198 33,784
Property, plant and equipment, net 6,091 6,234
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 $ 7,032 7,002
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 $ 2,504 2,478
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 $ 20,644 20,429
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, gross $ 294 $ 294
Property, plant and equipment, useful life Shorter of the lease term or life of asset