Debt And Other Financing (Loans Payable And Current Portion of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Short-term Debt [Line Items]
Loans payable and current portion of long-term debt	$ 8,703	$ 8,921
Loans Payable [Member]
Short-term Debt [Line Items]
Loans payable and current portion of long-term debt		50
Current Portion Of Long-Term Debt [Member]
Short-term Debt [Line Items]
Loans payable and current portion of long-term debt	$ 8,703	$ 8,871