Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets
Cumulative foreign currency translation loss	$ 3,818	$ 1,522
Basis difference for fixed assets	1,426	0
Deferred gain	1,956	1,988
Net operating loss carryforward	7,107	9,633
Total deferred tax sssets	14,307	13,143
Less: valuation allowance	(14,307)	(6,480)
Total net deferred tax assets	0	6,663
Deferred Tax Liabilities
Deferred gain	0	0
Basis differences for fixed assets	0	6,663
Total Deferred Tax Liability	0	(6,663)
Current net deferred tax asset	0	6,663
Long-term net deferred tax liability	0	6,663
Net deferred tax asset	$ 0	$ 0