Subsequent Events (Details) - USD ($) $ in Millions	Jul. 14, 2020	Jul. 13, 2020	Jul. 12, 2020	Jun. 24, 2015
Cantor Fitzgerald & Co [Member]
Subsequent Event [Line Items]
Maximum gross sales proceeds				$ 25.0
Subsequent Event [Member] | Cantor Fitzgerald & Co [Member]
Subsequent Event [Line Items]
Period after delivery entity delivered written notice to terminate the Sales Agreement			10 days
Subsequent Event [Member] | HC Wainwright Co [Member]
Subsequent Event [Line Items]
Maximum gross sales proceeds	$ 7.0
Commission on aggregate gross proceeds		3.00%