Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	35.00%
Adjustments for tax effects of:
State taxes, net	0.47%	7.40%
Stock-based compensation	(4.29%)	(16.10%)
Foreign taxes		(1.20%)
Tax law change		(459.10%)
Fair market value adjustments	(0.59%)	92.10%
Other permanent adjustments	(0.56%)	(1.30%)
Tax rate adjustment		19.10%
Uncertain tax positions	0.30%	4.90%
NOL expiration		(21.80%)
Other	(1.57%)
Valuation allowance	(10.25%)	341.80%
Effective income tax rate	4.51%	0.80%