Basis of Presentation, Summary of Significant Accounting Policies (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross book value	$ 14,742
Accumulated amortization	(580)
Net book value	14,162	$ 336
Customer contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Gross book value	6,300
Accumulated amortization	(51)
Net book value	$ 6,249
Weighted-average life (years)	10 years
Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Gross book value	$ 5,000
Accumulated amortization	(42)
Net book value	$ 4,958
Weighted-average life (years)	10 years
UL Listings [Member]
Finite-Lived Intangible Assets [Line Items]
Gross book value	$ 2,700
Accumulated amortization	(19)
Net book value	$ 2,681
Weighted-average life (years)	12 years
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross book value	$ 742	713
Accumulated amortization	(468)	(377)
Net book value	$ 274	$ 336