Business Combination, SerEnergy and FES (Details)			1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2021 USD ($) Group Customer $ / shares W kW shares	Aug. 31, 2021 EUR (€) Customer W kW shares	Sep. 30, 2021 USD ($) $ / shares	Sep. 30, 2021 USD ($) $ / shares	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) $ / shares	Sep. 30, 2020 USD ($)	Dec. 31, 2020 $ / shares
Business Combination, Description [Abstract]
Revenue, net				$ 1,673,998	$ 225,412	$ 4,166,754	$ 526,032
Net loss				$ (11,279,722)	(748,816)	$ (11,517,360)	(1,418,037)
Common stock, par value (in dollars per share) | $ / shares			$ 0.0001	$ 0.0001		$ 0.0001		$ 0.0001
Cost of Investment [Abstract]
Share consideration				$ 37,923,860		$ 37,923,860
SerEnergy and FES [Member]
Business Combination, Description [Abstract]
Revenue, net			$ 791,626
Net loss			$ (834,944)
Pro-forma revenues				3,900,000	500,000	13,100,000	2,400,000
Pro-forma net loss				$ (13,100,000)	$ (2,500,000)	$ (20,300,000)	$ (11,600,000)
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
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001
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	10,454,864
Total current assets	14,821,665
Non-current assets	5,434,180
Total assets	20,255,845
Current liabilities	5,818,170
Non-current liabilities	1,179,618
Total liabilities	6,997,788
Net assets acquired	13,258,057
Cost of Investment [Abstract]
Cash consideration	22,236,111
Share consideration	37,923,860
Cost of investment	60,159,971
Net assets value	13,258,057
Original excess purchase price	46,901,914
Fair value adjustment of Real Property	76,000
Intangibles acquired	20,121,000
Deferred tax liability arising from the recognition of intangibles and real property valuation	(4,444,000)
Deferred tax assets on tax losses carried forward	1,915,000
Remaining Goodwill	$ 29,233,914
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	$ 17,275,000
Number of group patents | Group	2
Intangible assets, measurement input	0.072
Useful lives of assets	10 years	10 years
Period of drive cash flows after new patents will be more relevance	10 years	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	$ 2,599,000
Intangible assets, measurement input	0.101
Useful lives of assets	6 years	6 years
SerEnergy and FES [Member] | Order Backlog [Member]
Cost of Investment [Abstract]
Intangibles acquired	$ 247,000