PROPERTY AND EQUIPMENT, NET (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Buildings	$ 2,288,298	$ 2,415,577
Plant and machinery	17,722,789	18,615,951
Motor vehicles	240,833	254,228
Office and electric equipment	1,363,581	1,415,194
Leasehold improvements	1,561,822	1,623,027
Subtotal	23,177,323	24,323,977
Less: accumulated depreciation	(17,273,541)	(17,024,334)
Property and equipment, net	$ 5,903,782	$ 7,299,643

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

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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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 before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.

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