Property and Equipment (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Property and equipment [Line Items]
Property and equipment, gross	$ 3,532,257	$ 3,351,465
Less accumulated depreciation	(2,378,590)	(2,279,840)
Property and equipment, net	1,153,667	1,071,625
Leasehold Improvements [Member]
Property and equipment [Line Items]
Property and equipment, gross	1,129,488	1,022,230
Lab and Clean Room Equipment [Member]
Property and equipment [Line Items]
Property and equipment, gross	1,887,645	1,887,645
Furniture and Office Equipment [Member]
Property and equipment [Line Items]
Property and equipment, gross	433,314	431,563
Construction in Progress [Member]
Property and equipment [Line Items]
Property and equipment, gross	$ 81,810	$ 10,027

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.

+ References+ Details

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.

+ References+ Details

- 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.

+ References+ Details