v3.7.0.1
Commitments and Contingencies Cash in Excess of FDIC Limits (Details) - USD ($)
$ in Thousands
Aug. 01, 2017
Jun. 30, 2017
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 $ 136