Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jul. 27, 2015
Property, Plant and Equipment [Line Items]
Impairment charges	$ 24,500,000	$ 0	$ 0
Goodwill	2,905,000
Impairment of goodwill	$ 0
Percentage of general reserve on receivables one to thirty days overdue	1.00%
Minimum period for general reserve with specific minimum percentage	1 day
Maximum period for general reserve with specific minimum percentage	30 days
Percentage of reserve on receivables one year overdue	100.00%
Maximum period for general reserve with specific maximum percentage	1 year
Accounts receivable	$ 55,284,000	58,022,000
Minimum percentage realization for recognition of income tax position	50.00%
CAIJ [Member]
Property, Plant and Equipment [Line Items]
Ownership percentage	80.00%
Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Residual value	$ 0
Railcars [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	43 years
Residual value	$ 8,700
Managed Fleet [Member]
Property, Plant and Equipment [Line Items]
Accounts receivable	$ 4,500,000	$ 8,500,000
ClearPointt [Member]
Property, Plant and Equipment [Line Items]
Acquisition purchase date	Jul. 27, 2015
Goodwill				$ 2,905,000
Minimum [Member]
Property, Plant and Equipment [Line Items]
Fixed lease term	1 year
Minimum [Member] | Other Specialized Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	12 years 6 months
Residual value	$ 1,000
Maximum [Member]
Property, Plant and Equipment [Line Items]
Fixed lease term	8 years
Maximum [Member] | Other Specialized Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	15 years
Residual value	$ 3,500