PROPERTY AND EQUIPMENT (Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property and equipment
Gross Property and Equipment	$ 9,310,222	$ 9,142,560
Accumulated Depreciation	(7,451,780)	(6,852,084)
Net Property and Equipment	1,858,442	2,290,476
Depreciation expense	920,368	1,141,545	1,341,472
Leasehold Improvements
Property and equipment
Gross Property and Equipment	463,080	446,164
Machinery and Equipment
Property and equipment
Gross Property and Equipment	6,046,055	5,848,306
Information Technology & Office Equipment
Property and equipment
Gross Property and Equipment	1,911,493	1,921,668
Laboratory Equipment
Property and equipment
Gross Property and Equipment	505,883	508,929
Transportation Equipment
Property and equipment
Gross Property and Equipment	383,711	417,493
Assets under Capital Lease Obligations
Property and equipment
Gross Property and Equipment	34,086	84,832
Net Property and Equipment	$ 11,557	$ 29,269

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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

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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