Other Agreements - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Other Agreements [Line Items]
Upfront consideration paid in exchange of common stock			600,000
Remaining cash consideration to be paid	$ 15,000,000		$ 15,000,000
Percentage on annual revenues for cash consideration to be paid			6.00%
Discount rate used to calculate asset purchase obligation			2.50%
Payments on obligation	0	$ 981,250	$ 0	$ 1,206,250
Accretion of discount on NuvoGen obligation	51,481	46,867	229,232	141,551
Research and development	1,309,573	$ 649,949	$ 2,951,009	$ 2,372,972
Agreement expiration date			Oct. 31, 2019
Description on termination of agreement			The Company may terminate the agreement at any time upon 90 days’ written notice and may terminate any development plan under the agreement upon 30 days’ prior written notice. Illumina may terminate the agreement upon 30 days’ prior written notice if the Company undergoes certain changes of control or immediately if the Company fails to select a testing field for an IVD test kit within 24 months following the date of the agreement. Either party may terminate the agreement upon the other party’s material breach of the agreement that remains uncured for 30 days, or upon the other party’s bankruptcy
Illumina, Inc. Agreement
Other Agreements [Line Items]
Aggregate payment upon achievement of specified regulatory milestones	1,000,000		$ 1,000,000
Research and development			0
Invetech PTY Ltd. Agreement
Other Agreements [Line Items]
Research and development	150,000		150,000
Growth Term Loan
Other Agreements [Line Items]
Minimum payments of pledged intangible assets due in 2014	868,750		868,750
Minimum payments of pledged intangible assets due in 2015	868,750		868,750
Minimum payments of pledged intangible assets due in first quarter of 2016	868,750		868,750
Minimum payments of pledged intangible assets due in second quarter of 2016	0		0
NuvoGen
Other Agreements [Line Items]
Convertible notes and related debt discount	$ 335,402		$ 335,402		$ 564,634