Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Valuation allowance
Valuation allowance (decrease) increase	$ 1,213	$ (403)
Deferred Tax Liability Not Recognized, Undistributed Earnings of Foreign Subsidiaries [Abstract]
Provision for U.S. federal and state taxes on cumulative foreign earnings	0
Foreign earnings intended to be reinvested outside of the U.S.	3,810
Foreign
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 3,066
Valuation allowance (as a percent)	100.00%