Property, Plant and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Total	$ 55,083us-gaap_PropertyPlantAndEquipmentGross	$ 62,623us-gaap_PropertyPlantAndEquipmentGross
Less: accumulated depreciation	(30,481)	(31,790)
Property plant and equipment excluding construction in progress, Total	24,602	30,833
Construction in progress	1,343us-gaap_ConstructionInProgressGross	34us-gaap_ConstructionInProgressGross
Net book value	25,945us-gaap_PropertyPlantAndEquipmentNet	30,867us-gaap_PropertyPlantAndEquipmentNet
Buildings
Property, Plant and Equipment [Line Items]
Total	54,618	54,682
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total	50	16
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total	335	7,845
Motor vehicle
Property, Plant and Equipment [Line Items]
Total	$ 80	$ 80

Property Plant And Equipment Excluding Construction In Progress

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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-Publisher FASB

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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