Commitments And Contingencies (Schedule Of Information Related To Right-Of-Use Assets And Lease Liabilities) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Commitments And Contingencies [Abstract]
Cash paid for operating lease liabilities	$ 263
Right-of-use assets recognized in exchange for new lease obligations	1,182
Current operating lease liabilities	168
Non-current operating lease liabilities	3,724
Total lease liabilities	$ 3,892
Weighted average remaining lease term	10 years 4 months 6 days
Weighted average discount rate	10.00%