Commitments and Contingencies Cash in Excess of FDIC Limits (Details) - USD ($) $ in Thousands |
Feb. 04, 2019 |
Dec. 31, 2018 |
---|---|---|
Cash in Excess of FDIC limits [Line Items] | ||
Cash, FDIC Insured Amount | $ 250 | |
Subsequent Event [Member] | ||
Cash in Excess of FDIC limits [Line Items] | ||
Cash, Uninsured Amount | $ 593 |