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 ($)
Equipment on operating leases , depreciation method	straight-line
Warrants, fair value	$ 40		$ 271
Number of operating segments | segment	1
Number of reportable segments | segment	1
Investment in securities	$ 98		$ 99
Impairment losses on investment in securities	0	$ 0
Unrealized gain (loss) on fair value adjustment for warrants	(231)	1
Unrealized gain (loss) on fair valuation of investments in securities	(1)	(8)
Securities without readily determinable fair value, fair value adjustments	0	0
Securities with Readily Determinable Fair Values [Member]
Unrealized gain (loss) on fair valuation of investments in securities	(1)	$ (8)
Securities without Readily Determinable Fair Values, Cumulative Amount [Member]
Unrealized gain (loss) on fair valuation of investments in securities	0
Minimum [Member]
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]
U.S. Treasury instruments maturity period	90 days
Cash deposits, insured amount	$ 250
Operating leases, initial terms	120 months
Equipment and lessee period of review for impairment	90 days