Property, Plant and Equipment (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Property, Plant and Equipment
Machinery and equipment	$ 30,708,041	$ 30,856,247
Furniture and office equipment	221,080	178,045
Motor vehicles	442,719	443,870
Buildings	32,123,715	25,777,820
Property, plant and equipment, gross	63,495,555	57,255,982
Less: accumulated depreciation	(15,060,180)	(12,978,754)
Property, plant and equipment, net	$ 48,435,375	$ 44,277,228

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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