Commitments and Contingencies (Lease liability maturity) (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Leases [Abstract]
2019	$ 2,039
2020	4,174
2021	4,294
2022	4,417
2023	4,544
Thereafter	13,590
Total future minimum lease payments	33,058
Less: discount	(5,168)
Total lease liability	$ 27,890