Leases (Maturities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Future minimum lease payments under non-cancellable leases as of December 31, 2019
2020	$ 1,482	$ 2,473
2021	2,172	2,172
2022	2,171	2,171
2023	1,885	1,885
2024	1,941	1,941
Thereafter	13,325	13,325
Total future minimum lease payments	22,976	23,967
Less imputed interest	(6,114)	(6,620)
Total operating lease liability	$ 16,862	$ 17,347