Nature of Operations and Summary of Significant Accounting Policies (Schedule Of Estimated Lives Of Property Plant And Equipment) (Details)	12 Months Ended
	Dec. 31, 2021
Leasehold Improvements, Furniture And Fixtures, And Other [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Leasehold Improvements, Furniture And Fixtures, And Other [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Machinery And Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Machinery And Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	25 years
Model Furnishings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Model Furnishings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Computer Hardware and Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	1 year
Computer Hardware and Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years