Commitments (Details) (USD $)	6 Months Ended			3 Months Ended			3 Months Ended	6 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Lease Agreements [Member]	Jun. 30, 2013 Installment Payment Agreement [Member]	Jun. 30, 2013 Wells Fargo Equipment Finance [Member]	Mar. 31, 2013 Wells Fargo Equipment Finance [Member] Installment Payment Agreement [Member]	Jun. 30, 2013 Laboratory and Computer Equipment Received [Member] Other Lease Agreement [Member]	Jun. 30, 2013 Laboratory and Computer Equipment Received [Member] Other Lease Agreement [Member]	Jun. 30, 2013 Laboratory and Computer Equipment Received [Member] Minimum [Member] Other Lease Agreement [Member]	Jun. 30, 2013 Laboratory and Computer Equipment Received [Member] Maximum [Member] Other Lease Agreement [Member]	Jun. 30, 2013 Laboratory Equipment Yet Not Received [Member] Other Lease Agreement [Member]	Jun. 30, 2013 Laboratory Equipment Yet Not Received [Member] Minimum [Member] Other Lease Agreement [Member]	Jun. 30, 2013 Laboratory Equipment Yet Not Received [Member] Maximum [Member] Other Lease Agreement [Member]
Commitments (Textual) [Abstract]
Lease agreement amount					$ 200,000						$ 1,300,000
Interest rate			6.00%	5.50%					4.50%	13.50%		11.50%	13.50%
Buyout Option			1	1			1	1			1
Purchase of a new billing system						145,000
Lease term period			5 years	36 months			36 months	36 months			36 months
Purchase of laboratory and computer equipment	$ 1,402,000	$ 2,140,000					$ 360,000	$ 945,000