Summary of Significant Accounting Policies - Policies (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment	Sep. 30, 2015 USD ($)
Reclassification
Sales and marketing expenses	$ 733,000	$ 351,000	$ 2,001,000	$ 941,000
General and administrative expenses	$ 2,819,000	3,282,000	$ 10,060,000	6,178,000
Segment Information
Number of operating segments | segment			1
Property and Equipment
Useful lives			5 years
Adjustment
Reclassification
Sales and marketing expenses		351,000		941,000
General and administrative expenses		$ (351,000)		$ (941,000)