Subsequent Event (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 31, 2019	Oct. 25, 2019	Sep. 30, 2019	Dec. 31, 2018
Subsequent Event [Line Items]
Par value			$ 0.01	$ 0.01
Private Placement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Aggregate offering price		$ 25
Private Placement [Member] | Common Stock | Subsequent Event [Member]
Subsequent Event [Line Items]
Shares sold	849,615
Purchase price per share	$ 12.00
Private Placement [Member] | Series C Preferred Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Purchase price per share	$ 1,200.00
Preferred stock, shares sold	12,337
Preferred stock, par value	$ 0.01
Private Placement [Member] | Nonvoting Common Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Par value	$ 0.01
Shares upon conversion	100