Income Taxes - Schedule of Federal Statutory Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax benefit at statutory rates	$ (12,339)	$ (6,666)
Permanent differences	325	70
Foreign rate differential	(4)	14
State income taxes, net of federal tax benefit	(2,034)	(1,081)
Effect of tax rate change			$ 4,000
Other	45	441
Valuation allowance	14,036	7,277
Income tax provision	$ 29	$ 55