Debt (Lines-Of-Credit And Notes Payable) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total	$ 160,671	$ 146,160
Carrying Amount of Pledged Assets	242,917	241,818
Lines-Of-Credit And Notes Payable [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs	(1,302)	(1,410)
Fifth Third Bank Note [Member]
Debt Instrument [Line Items]
Balance	$ 16,973	$ 18,820
Interest Rate	3.50%	4.95%
Carrying Amount of Pledged Assets	$ 28,235	$ 31,259
Fifth Third Syndicated LOC [Member]
Debt Instrument [Line Items]
Balance	$ 50,000	$ 30,000
Interest Rate	2.39%	3.85%
Carrying Amount of Pledged Assets	$ 74,028	$ 49,062
Fifth Third Syndicated Term Loan [Member]
Debt Instrument [Line Items]
Balance	$ 95,000	$ 98,750
Interest Rate	2.56%	3.71%
Carrying Amount of Pledged Assets	$ 140,654	$ 161,497