Summary of Significant Accounting Policies - Product Revenue from Sale of Instruments and Consumables (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Revenue Reconciling Item [Line Items]
Total product sales	$ 3,532,028	$ 1,788,205
Instruments
Segment Reporting Revenue Reconciling Item [Line Items]
Total product sales	789,231	793,505
Consumables
Segment Reporting Revenue Reconciling Item [Line Items]
Total product sales	$ 2,742,797	$ 994,700