Investments in Equipment and Leases (Property on Operating Leases) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	$ 2,900
Additions	(84)
Reclassifications & Additions / Dispositions	(16)
Balance June 30, 2015	2,800
Transportation [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	$ 20,818
Additions
Reclassifications & Additions / Dispositions	$ (382)
Balance June 30, 2015	20,436
Materials Handling [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	$ 83
Additions
Reclassifications & Additions / Dispositions
Balance June 30, 2015	$ 83
Total Property Subject to or Available For Operating Lease [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	20,901
Reclassifications & Additions / Dispositions	(382)
Balance June 30, 2015	20,519
Less Accumulated Depreciation [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	(18,001)
Additions	(84)
Reclassifications & Additions / Dispositions	366
Balance June 30, 2015	$ (17,719)