Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 289	$ 735	$ 1,098	$ 1,071
Income before income taxes	(3,700)	2,600	(2,000)	4,400
Unrecognized tax benefits	800		800
Unrecognized tax benefits that would impact effective tax rate	100		100
Unrecognized tax benefits, period increase (decrease)	$ 0	$ 0	$ 0	$ 0