Organization and Operations - Liquidity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2015
Proceeds from issuance initial public offering		$ 61,744
Initial public offering
Number of shares issued	5,750,000
Share price (in dollars per share)	$ 12.00
Proceeds from issuance initial public offering	$ 61,700
Underwriting discounts, commissions and offering-related expenses payable	$ 7,300
Conversion of convertible preferred stock into common stock (in shares)	9,029,549
Initial public offering | Warrants for the purchase of Common Stock
Number of shares after conversion of issued warrants (in shares)	24,566
Over-Allotment option for underwriters
Number of shares issued	750,000
Preferred Stock | Initial public offering
Preferred Stock warrants converted (in shares)	315,688