Leases (Schedule Of Maturities Of Lease Liabilities) (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Leases [Abstract]
2019 (excluding the nine months ended September 30, 2019)	$ 366
2020	1,460
2021	1,337
2022	1,178
2023	708
Total payments	5,049
Less imputed interest	(490)
Total	4,559
2019	379
2020	1,514
2021	1,519
2022	1,540
2023	1,562
2024	1,594
2025 and thereafter	9,799
Total payments	17,907
Less imputed interest	(5,570)
Total	$ 12,337