Summary of Significant Accounting Policies - Schedule of other income, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Other (expense) income [Abstract]
Foreign currency loss	$ (83)	$ (258)
Rental loss-net	(996)	(865)
Gain on sale of real estate	0	649
Fair value adjustment contingent consideration	0	450
Other income, net	(424)	330
Other income, net	$ (1,503)	$ 306