Commitments and contingencies
|3 Months Ended|
Mar. 31, 2022
|Commitments and Contingencies Disclosure [Abstract]|
|Commitments and contingencies||Commitments and Contingencies We guaranteed certain obligations of a former subsidiary of ADGE, EuroSite Power Inc. These guarantees include a payment performance guarantee in respect of collateralized equipment financing loans, with a remaining principal amount outstanding subject to the guarantee. In October 2021, the loan was paid in full. We have no further obligation to Eurosite Power Inc. under this guarantee.|
The entire disclosure for commitments, contingencies, and guarantees.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef