Description of the Business - Additional Information (Detail) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	Oct. 14, 2015 USD ($) $ / shares shares	Oct. 02, 2015	Oct. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) shares
Business Acquisition Equity Interests Issued Or Issuable [Line Items]
Net proceeds from IPO after underwriting discounts, commissions and estimated offering expenses | $			$ 81,800	$ 81,777
Reverse stock split				one-for-62.997
Reverse stock split conversion ratio		0.01587
Common Stock
Business Acquisition Equity Interests Issued Or Issuable [Line Items]
Issuance of common stock in connection with initial public offering, net of underwriting discount of $6,440 and offering costs of $3,796, share				7,666,667
Initial Public Offering | Common Stock
Business Acquisition Equity Interests Issued Or Issuable [Line Items]
IPO price per share | $ / shares	$ 12.00
Issuance of common stock in connection with initial public offering, net of underwriting discount of $6,440 and offering costs of $3,796, share	7,666,667
Net proceeds from IPO after underwriting discounts, commissions and estimated offering expenses | $	$ 81,800
Underwriters | Common Stock
Business Acquisition Equity Interests Issued Or Issuable [Line Items]
Issuance of common stock in connection with initial public offering, net of underwriting discount of $6,440 and offering costs of $3,796, share	1,000,000