Fair Value Measurements (Schedule Of Fair Value Carried At Cost And Measured On A Nonrecurring Basis) (Details) - Nonrecurring [Member] - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable		$ 107,843	$ 121,204
Subordinated debt		15,898	15,247
Financial liabilities total		123,741	136,451
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable		107,843	121,204
Subordinated debt		15,898	15,247
Financial liabilities total		123,741	136,451
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable	[1]	106,858	120,622
Subordinated debt	[1]	27,913	27,913
Financial liabilities total	[1]	$ 134,771	$ 148,535

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