Leases (Schedule Of Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 147	$ 433
Amortization of right-of-use assets	138	138
Interest on lease liabilities	41	41
Total lease cost	326	612
Cash paid for amounts included in the measurement of operating lease liabilities	240	518
Cash paid for amounts included in the measurement of finance lease liabilities	$ 106	$ 106