Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)
Equipment on operating leases , depreciation method	straight-line
Impairment losses on investment in securities		$ 17
Warrants, fair value	$ 271	229
Number of operating segments | segment	1
Number of reportable segments | segment	1
Investment in securities	$ 99	112
Unrealized gain (loss) on fair value adjustment for warrants	42	(3)
Unrealized (loss) gain on fair value adjustment for investments in securities	(12)	6
Operating leases in non-accrual status	0	0
Provision for franchise fees and state taxes	$ 109	$ 91
Period subject to income tax examination	3 years
Practical expedients package	true
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
Note receivable, 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
Note receivable, period of review for impairment	90 days