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v3.22.1

Business Combination, SerEnergy and FES (Details) |  | 3 Months Ended | 4 Months Ended | 12 Months Ended
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Aug. 31, 2021 USD ($) Patent Customer kW W shares | Aug. 31, 2021 EUR (€) Customer kW W shares | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Business Combination, Description [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  | $ 2,902,088 | $ 1,673,998 | $ 1,003,464 | $ 1,489,292 | $ 356,620 | $ 225,412 | $ 200,354 | $ 100,266 |  | $ 7,068,842 | $ 882,652
Net loss |  |  | (9,005,982) | $ (11,279,724) | $ (3,143,310) | $ 2,905,674 | (1,703,005) | $ (748,816) | $ (312,119) | $ (357,102) |  | (20,523,342) | (3,121,042)
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Share consideration |  |  |  |  |  |  |  |  |  |  |  | 37,923,861 |
Remaining Goodwill |  |  | 30,030,498 |  |  |  | $ 0 |  |  |  | $ 30,030,498 | 30,030,498 | 0
SerEnergy and FES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Description [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  | 2,310,796 |  |
Net loss |  |  |  |  |  |  |  |  |  |  | (3,612,629) |  |
Pro-forma Revenues and Net Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |  | 16,000,000.0 | 3,000,000.0
Net Loss |  |  |  |  |  |  |  |  |  |  |  | (29,300,000) | $ (16,200,000)
Consideration paid | $ 17,869,309 | € 15,000,000 |  |  |  |  |  |  |  |  |  |  |
Issued to the seller shares of common stock (in shares) | shares | 5,124,846 | 5,124,846 |  |  |  |  |  |  |  |  |  |  |
Percentage of share consideration | 9.999% | 9.999% |  |  |  |  |  |  |  |  |  |  |
Transaction costs | $ 889,716 |  |  |  |  |  |  |  |  |  |  |  |
Current Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 4,366,802 |  |  |  |  |  |  |  |  |  |  |  |
Other current assets | 10,252,064 |  |  |  |  |  |  |  |  |  |  |  |
Total current assets | 14,618,866 |  |  |  |  |  |  |  |  |  |  |  |
Non-current assets | 5,387,674 |  |  |  |  |  |  |  |  |  |  |  |
Total assets | 20,006,540 |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities | 5,800,077 |  |  |  |  |  |  |  |  |  |  |  |
Non-current liabilities | 1,179,618 |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities | 6,979,695 |  |  |  |  |  |  |  |  |  |  |  |
Net assets acquired | 13,026,845 |  |  |  |  |  |  |  |  |  |  |  |
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration | 22,236,111 |  |  |  |  |  |  |  |  |  |  |  |
Share consideration | 37,923,860 |  |  |  |  |  |  |  |  |  |  |  |
Cost of investment | 60,159,971 |  |  |  |  |  |  |  |  |  |  |  |
Net assets value | 13,026,845 |  |  |  |  |  |  |  |  |  |  |  |
Original excess purchase price | 47,133,126 |  |  |  |  |  |  |  |  |  |  |  |
Fair value adjustment of Real Property | 76,000 |  |  |  |  |  |  |  |  |  |  |  |
Intangibles acquired | 19,771,000 |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax liability arising from the recognition of intangibles and real property valuation | (5,452,000) |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax assets on tax losses carried forward | 3,339,000 |  |  |  |  |  |  |  |  |  |  |  |
Remaining Goodwill | $ 29,399,126 |  | $ 29,399,126 |  |  |  |  |  |  |  | $ 29,399,126 | $ 29,399,126 |
SerEnergy and FES [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
High temperature-PEM fuel cells coverage | W | 25 | 25 |  |  |  |  |  |  |  |  |  |  |
SerEnergy and FES [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
High temperature-PEM fuel cells coverage | kW | 90 | 90 |  |  |  |  |  |  |  |  |  |  |
SerEnergy and FES [Member] | Assembled Workforce [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Remaining Goodwill | $ 2,400,000 |  |  |  |  |  |  |  |  |  |  |  |
SerEnergy and FES [Member] | Patents [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangibles acquired | $ 16,893,000 |  |  |  |  |  |  |  |  |  |  |  |
Number of group patents | Patent | 2 |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets, measurement input | 0.072 |  |  |  |  |  |  |  |  |  |  |  |
Useful lives of assets |  |  |  |  |  |  |  |  |  |  |  | 10 years |
Period of drive cash flows after new patents will be more relevance |  |  |  |  |  |  |  |  |  |  |  | 10 years |
Number of main customers | Customer | 2 | 2 |  |  |  |  |  |  |  |  |  |  |
SerEnergy and FES [Member] | Process know-how (IPR&D) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangibles acquired | $ 2,612,000 |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets, measurement input | 0.101 |  |  |  |  |  |  |  |  |  |  |  |
Useful lives of assets |  |  |  |  |  |  |  |  |  |  |  | 6 years |
SerEnergy and FES [Member] | Order Backlog [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Investment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangibles acquired | $ 266,000 |  |  |  |  |  |  |  |  |  |  |  |

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