Inventories (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Inventory
Raw materials	$ 30,000		$ 30,000		$ 10,000
Work-in-process					591,000
Finished goods	38,000		38,000		53,000
Total Inventories	68,000		68,000		654,000
Inventories (Textual) [Abstract]
Write-down of inventory	$ 100,000	$ 100,000	$ 600,000	$ 100,000