Fair Value Measurements (Summary of Valuation Techniques and Significant Unobservable Inputs Used) (Details)	Mar. 31, 2020 USD ($) Y $ / shares	Dec. 31, 2019 USD ($) Y $ / shares
Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired lease and off-lease equipment	$ 96,000	$ 104,000
Level 3 Estimated Fair Value [Member] | Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired lease and off-lease equipment	96,000	104,000
Level 3 Estimated Fair Value [Member] | Nonrecurring [Member] | Impaired Off-Lease Equipment [Member] | Market Approach [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired lease and off-lease equipment	$ 96,000	$ 104,000
Level 3 Estimated Fair Value [Member] | Minimum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Stock Price [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | $ / shares	0.12	0.12
Level 3 Estimated Fair Value [Member] | Minimum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Exercise Price [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | $ / shares	0.10	0.10
Level 3 Estimated Fair Value [Member] | Minimum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Time to maturity (in years) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | Y	0.37	0.99
Level 3 Estimated Fair Value [Member] | Minimum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Risk Free Interest Rate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values	0.0015	0.0158
Level 3 Estimated Fair Value [Member] | Minimum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Annualized Volatility [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values	0.3515	0.4392
Level 3 Estimated Fair Value [Member] | Minimum [Member] | Nonrecurring [Member] | Impaired Off-Lease Equipment [Member] | Market Approach [Member] | Measurement Inputs, Third Party Agents' Estimate of the Value of Collateral [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired lease and off-lease equipment	$ 0	$ 0
Level 3 Estimated Fair Value [Member] | Maximum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Stock Price [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | $ / shares	5.23	12.92
Level 3 Estimated Fair Value [Member] | Maximum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Exercise Price [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | $ / shares	1,000.00	1,000.00
Level 3 Estimated Fair Value [Member] | Maximum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Time to maturity (in years) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | Y	5.83	6.08
Level 3 Estimated Fair Value [Member] | Maximum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Risk Free Interest Rate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values	0.0045	0.0173
Level 3 Estimated Fair Value [Member] | Maximum [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Annualized Volatility [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values	1.1463	1.0907
Level 3 Estimated Fair Value [Member] | Maximum [Member] | Nonrecurring [Member] | Impaired Off-Lease Equipment [Member] | Market Approach [Member] | Measurement Inputs, Third Party Agents' Estimate of the Value of Collateral [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired lease and off-lease equipment	$ 8,000	$ 8,000
Level 3 Estimated Fair Value [Member] | Weighted Average [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Stock Price [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | $ / shares	0.29	0.38
Level 3 Estimated Fair Value [Member] | Weighted Average [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Exercise Price [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | $ / shares	0.49	0.50
Level 3 Estimated Fair Value [Member] | Weighted Average [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Time to maturity (in years) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values | Y	1.66	2.05
Level 3 Estimated Fair Value [Member] | Weighted Average [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Risk Free Interest Rate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values	0.0022	0.0159
Level 3 Estimated Fair Value [Member] | Weighted Average [Member] | Recurring [Member] | Warrant [Member] | Black-Scholes Model [Member] | Unobservable Inputs, Annualized Volatility [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrants, Range of Input Values	0.4641	0.5073