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PROPERTY AND EQUIPMENT (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| PROPERTY AND EQUIPMENT | |||
| Total property and equipment | $ 26,062,000 | $ 23,102,000 | |
| Less accumulated depreciation and amortization | (20,236,000) | (18,220,000) | |
| Property and equipment, net | 5,826,000 | 4,882,000 | |
| Assets diposed off | 422,000 | 206,000 | |
| Accumulated depreciation on assets disposed off | 417,000 | 206,000 | |
| Depreciation expense including amortization of equipment under capital leases | 2,433,000 | 1,955,000 | 1,317,000 |
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Laboratory and office equipment
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| PROPERTY AND EQUIPMENT | |||
| Total property and equipment | 26,022,000 | 23,071,000 | |
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Assets to be placed in service
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| PROPERTY AND EQUIPMENT | |||
| Total property and equipment | $ 40,000 | $ 31,000 | |
| X | ||||||||||
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The decrease in accumulated depreciation, depletion and amortization (relating to property, plant and equipment) as a result of sales or disposals of property, plant and equipment during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Divestiture 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. No definition available.
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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