Acquisition (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
		Aug. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Acquisition (Details) [Line Items]
Cash paid at closing	[1]		$ 1,714
Asset Retirement Obligation, Cash Paid to Settle			500
Goodwill			4,204
Contingent consideration liability			2,009
HelioHeat [Member]
Acquisition (Details) [Line Items]
Interest acquired		100.00%
Liabilities arising from contingencies		$ 3,000
Goodwill			4,200
Contingent consideration liability			2,000
Acquisition related costs			100
Revenue of acquiree			400
Net loss of acquiree			$ 700
HelioHeat [Member] | Paid to HelioHeat’s shareholders [Member]
Acquisition (Details) [Line Items]
Cash paid at closing		1,000
HelioHeat [Member] | Payments To Acquire Business, Deposit in Escrow Account [Member]
Acquisition (Details) [Line Items]
Cash paid at closing		500
HelioHeat [Member] | Repay outstanding debt [Member]
Acquisition (Details) [Line Items]
Cash paid at closing		200
HelioHeat [Member] | Payable upon service conditions [Member]
Acquisition (Details) [Line Items]
Liabilities arising from contingencies		500
HelioHeat [Member] | Earn-out provisions [Member]
Acquisition (Details) [Line Items]
Liabilities arising from contingencies		$ 2,500
Liabilities arising from contingencies, term		5 years

[1] Includes $0.5 million of cash paid to an escrow that becomes payable to the selling shareholders of HelioHeat to the extent the funds are not used to offset certain costs incurred for the assumed customer projects. The amount is being treated as consideration transferred as the release of the funds is likely to occur.