Property and Equipment (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Property and equipment [Line Items]
Property and equipment, gross	$ 3,351,465	$ 2,683,884
Less accumulated depreciation	(2,279,840)	(1,814,473)
Property and equipment, net	1,071,625	869,411
Leasehold Improvements [Member]
Property and equipment [Line Items]
Property and equipment, gross	1,022,230	925,086
Lab and clean room equipment [Member]
Property and equipment [Line Items]
Property and equipment, gross	1,887,645	1,463,144
Furniture and office equipment [Member]
Property and equipment [Line Items]
Property and equipment, gross	431,563	295,654
Construction in Progress [Member]
Property and equipment [Line Items]
Property and equipment, gross	$ 10,027	$ 0

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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