Financing (Details 2) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Series C Preferred Stock [Member]
Preferred shares issued	22
Preferred shares converted	17
Preferred shares remaining	5
Common shares issued	273,382	499,084
Series D Preferred Stock [Member]
Preferred shares issued	25
Preferred shares converted	22
Preferred shares remaining	3
Common shares issued	245,162	136,899