Inventories, Contracts in Progress and Vehicle Floor Plan Payable (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jul. 05, 2022
Inventory [Line Items]
Weighted average interest rate	4.80%	4.80%
Automotive [Member]
Inventory [Line Items]
Borrowing capacity	$ 106,300,000
Vehicle floor plan payable	69,800,000
Floor plan assistance	$ 4,600,000	$ 2,700,000	$ 2,100,000
Truist Floor Plan Facility [Member] | Automotive [Member]
Inventory [Line Items]
Borrowing capacity				$ 80,000,000
Vehicle Floor Plan Facility [Member] | Automotive [Member]
Inventory [Line Items]
Weighted average interest rate	3.20%	1.10%	1.70%