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Investment in Equipment and Leases, Net (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Investment in Equipment and Leases, Net [Abstract]          
Depreciation of operating lease assets $ 124 $ 162 $ 258 $ 376  
Average estimated residual value for assets on operating leases 11.00%   11.00%   11.00%
Contingent rental revenue 325 497 684 1,000  
Net investment in direct financing leases $ 0   $ 0   $ 0