Fair Value Measurements (Schedule Of Fair Value Carried At Cost And Measured On A Nonrecurring Basis) (Details) - Nonrecurring [Member] - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable		$ 208,782	$ 207,817
Subordinated debt		20,697	20,494
Financial liabilities total		229,479	228,311
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable		208,782	207,817
Subordinated debt		20,697	20,494
Financial liabilities total		229,479	228,311
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable	[1]	208,360	206,992
Subordinated debt	[1]	29,782	29,956
Financial liabilities total	[1]	$ 238,142	$ 236,948

[1] These balances are presented before any deduction for deferred financing costs.