Income Taxes (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
liabilities for uncertain income tax positions	$ 0
Operating loss carryforwards	344,000,000.0
Tax credit carryforward	10,100,000
Valuation allowance	2,800,000	$ 2,200,000
Income tax expense	0	$ 0
State and Local Jurisdiction | IThena
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 800