Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Summary of Significant Accounting Policies [Line Items]
Equipment on operating leases, depreciation method	straight-line
Taxes on income and franchise fees	$ 2
Number of operating segments | segment	1
Number of reportable segments | segment	1
Unrealized loss on fair value adjustment for warrants	$ (29)	$ (4)
Warrants, fair value	702		$ 731
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Required assets value of financial institutions for cash deposits	$ 10,000,000
Operating leases, initial terms	36 months
Operating leases, Period for non-accrual status	90 days
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Treasury instruments maturity period	90 days
Cash deposits, insured amount	$ 250
Operating leases, initial terms	120 months
Operating leases, period of review for impairment	90 days