Fair Value of Financial Instruments - Additional Information (Details) - USD ($)		1 Months Ended		6 Months Ended
	Feb. 02, 2016	Apr. 30, 2014	Nov. 30, 2012	Jun. 30, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrants issued to purchase common stock	78,406	33,332	70,000
Warrant exercise term			10 years
Warrant exercise price		$ 4.47	$ 0.99
Aggregate outstanding balance of credit facility		$ 7,500,000		$ 7,500,000
Warrants exercised	86,666
Shares withheld to cover warrant exercise costs	8,260
Adjustments to additional paid in capital for warrant liability reversed	$ 244,000
Remaining contingent common stock warrant liability				16,666
Estimated common stock warrant liability				$ 25,000
Common Stock Warrant Without Contingency
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrants issued to purchase common stock		16,666
Contingent Common Stock Warrant
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrants issued to purchase common stock		16,666
Estimated exercisable percentage		10.00%
Warrant expiration date				Nov. 12, 2018