Other Identifiable Intangible Assets (Details) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended
	Jan. 31, 2020	May 31, 2016	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets			$ 99,000	$ 147,000	$ 298,000	$ 441,000
Excess of consideration issued over book value of assets acquired	$ 1,600,000
McMahon Leasing [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	263,000
Payments for purchase of business	8,700,000
Extinguishment of debt	3,900,000
Investment in subsidiary	3,100,000
Acquired finite-lived intangible assets	1,100,000
Lease receivable and inventory fair value adjustment	550,000
Purchase of lease receivables	9,900,000
Purchase of automobile inventory and other assets	958,000
Customer List Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition purchase price		$ 60,000,000.0
Finite-Lived Intangible Assets, Remaining Amortization Period		10 years
Amortization of intangible assets over five years					1,500,000
Gross intangible assets		$ 3,400,000	3,400,000		3,400,000		$ 3,400,000
Accumulated amortization			1,800,000		1,800,000		$ 1,600,000
Amortization of intangible assets					$ 340,000
Customer List Intangibles [Member] | McMahon Leasing [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life					12 years
Accumulated amortization			100,000		$ 100,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months			57,000		57,000
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year			57,000		57,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four			57,000		57,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three			57,000		57,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two			57,000		57,000
Finite-Lived Intangible Assets, Net			$ 285,000		$ 285,000
Gross Carrying Amount	689,000
Leases [Member] | McMahon Leasing [Member]
Finite-Lived Intangible Assets [Line Items]
Excess of consideration issued over book value of assets acquired	453,000
Trade Names [Member] | McMahon Leasing [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets	$ 135,000