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v3.22.1

Commitments and Contingencies (Details) |  | 1 Months Ended | 4 Months Ended | 44 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 06, 2017 contractor | Aug. 31, 2018 | Mar. 31, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |
Number of defendants | contractor | 9 |  |  |  |
Chelsea Group Limited |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Contingent consideration, liability, revenue earn-outs, payment period (in years) |  | 5 years |  |  |
Contingent consideration, liability, fair value at date of acquisition |  |  | $ 358,000 | $ 358,000 | $ 678,000
Payments |  |  |  | 0 |
Plug Smart |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Contingent consideration, liability, revenue earn-outs, payment period (in years) |  |  | 5 years |  |
Contingent consideration, liability, fair value at date of acquisition |  |  | $ 2,061,000 | $ 2,061,000 |
Payments |  |  | $ 0 |  |
Maximum cumulative earn-out |  |  |  |  | 5,000,000
Contingent consideration |  |  |  |  | $ 2,160,000

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