Property and Equipment

6 Months Ended

Jun. 30, 2011

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Text Block]

4.   Property and Equipment

Property and Equipment consisted of the following at June 30, 2011, and December 31, 2010.

	June 30, 2011			December 31, 2010
Leasehold improvements	$	2,070		$	864,429
Manufacturing equipment		400,045			410,997
Computer and office equipment		160,478			160,478
Laboratory equipment		213,908			213,908
Total		776,501			1,649,812
Less accumulated depreciation		(380,357	)		(1,138,670	)
Property and equipment, net	$	396,144		$	511,142

The decrease in leasehold improvements during the six months ended June 30, 2011, reflects the relocation of the Company’s headquarters within Ann Arbor, Michigan.  During the six months ended June 30, 2011, the Company sold equipment, with a net book value of $6,892, for $1,200, resulting in a loss of $5,692.

Depreciation expense for the six months ended June 30, 2011 and 2010 was $108,106 and $180,076, respectively.