Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)
Investment in securities	$ 44	$ 55
Equipment on operating leases, depreciation method	straight-line method
Warrants	$ 0	0
Number of operating segments | segment	1
Number of reportable segments | segment	1
Impairment losses on investment in securities	$ 11
Provision for franchise fees and state taxes	$ 34	$ (106)
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
Maximum [Member]
U.S. 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