Subsequent Events (Details) - Subsequent event - USD ($) $ / shares in Units, $ in Thousands	May 04, 2020	Apr. 03, 2020	Apr. 29, 2020
Wainwright
Stock Issued During Period, Shares, New Issues		7,218,750
Shares Issued, Price Per Share		$ 1.60
Proceeds from Issuance of Common Stock		$ 11,550
Cash Placement Fee Equal to Percentage of Common Stock Purchase Price		7.00%
Management Fee Equal to Percentage of Common Stock Purchase Price		1.00%
Proceeds from Issuance of Private Placement		$ 10,500
Affiliates of Wainwright | Placement Agent Warrants
Class of Warrant or Right, Outstanding		433,125
Warrants and Rights Outstanding, Term		5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 2.00
Paycheck Protection Program CARES Act
Proceeds from Loans	$ 1,250
Debt Instrument, Term	2 years
Debt Instrument, Interest Rate, Effective Percentage	1.00%
Loan Period To Cover Payroll, Rent and Utility Costs Under Cares Act To Be Forgiven	56 days
IEH Biopharma | Convertible Notes | Deutsche Bank Trustee And IEH Biopharma Noteholder
Convertible Debt Principal Amount			$ 170,200
Maximum | Affiliates of Wainwright | Placement Agent Warrants
Maximum Percentage of Common Stock Offering Issued as Warrants		6.00%