Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Calculation of basic and diluted net loss per common share
Net loss attributable to common stockholders	$ (16,637,924)	$ (9,256,248)
Shares used to compute net loss per common share, basic and diluted (in shares)	6,153,139	2,854,417
Net loss per share attributable to common shareholders, basic and diluted (in dollars per share)	$ (2.70)	$ (3.24)
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Outstanding common stock equivalents have been excluded from diluted net loss per common share (in shares)	1,723,914	3,233,319
Convertible preferred stock
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Outstanding common stock equivalents have been excluded from diluted net loss per common share (in shares)		2,010,596
Options
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Outstanding common stock equivalents have been excluded from diluted net loss per common share (in shares)	919,506	659,554
Warrants to purchase common stock
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Outstanding common stock equivalents have been excluded from diluted net loss per common share (in shares)	748,872	494,267
Restricted stock units
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Outstanding common stock equivalents have been excluded from diluted net loss per common share (in shares)	55,536	68,902