Investments in Foreign Joint Ventures - Schedule of Financial Information of Foreign Joint Venture (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Assets
Total current assets	$ 10,856				$ 10,856		$ 13,716
Total assets	81,610				81,610		90,326
Liabilities and Equity
Total liabilities	18,657				18,657		22,483
Total joint ventures’ equity	62,953				62,953		67,843
Total liabilities and equity	81,610				81,610		90,326
Net income (loss)	(3,463)	$ (1,050)	$ (1,038)	$ (559)	(4,513)	$ (1,597)
Bomay | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Assets
Total current assets	65,681				65,681		81,247
Total non-current assets	5,882				5,882		5,775
Total assets	71,563				71,563		87,022
Liabilities and Equity
Total liabilities	45,930				45,930		58,176
Total joint ventures’ equity	25,633				25,633		28,846
Total liabilities and equity	71,563				71,563		$ 87,022
Revenue	18,647				27,203
Gross Profit	3,336				4,232
Net income (loss)	$ 2,283				$ 1,999