Fair Value Measurements (Schedule Of Fair Value Carried At Cost And Measured On A Nonrecurring Basis) (Details) - Nonrecurring [Member] - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable		$ 169,305	$ 172,230
Subordinated debt		25,203	25,025
Financial liabilities total		194,508	197,255
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable		169,305	172,230
Subordinated debt		25,203	25,025
Financial liabilities total		194,508	197,255
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable	[1]	184,339	186,387
Subordinated debt	[1]	29,062	29,246
Financial liabilities total	[1]	$ 213,401	$ 215,633

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