Income Taxes (Tables)
|
12 Months Ended |
Dec. 31, 2021 |
Income Taxes Table [Abstract] |
|
Schedule of statutory federal tax and the total income tax expense |
|
|
Year Ended December 31,
|
|
|
2021
|
|
2020
|
Federal statutory rate
|
|
$
|
(3,176,802 |
)
|
|
$
|
(1,510,748 |
)
|
State income taxes, net
|
|
|
—
|
|
|
|
—
|
|
Change in valuation allowance
|
|
|
3,783,112 |
|
|
|
2,218,615 |
|
PPP Loans forgiveness
|
|
|
(331,485 |
)
|
|
|
(331,485 |
)
|
Research & development tax credit
|
|
|
(282,774 |
)
|
|
|
(379,073 |
)
|
Other, net
|
|
|
7,949 |
|
|
|
2,691 |
|
Total income tax expense
|
|
$
|
—
|
|
|
$
|
—
|
|
|
Schedule of deferred tax assets and liabilities |
|
|
December 31,
|
|
|
2021
|
|
2020
|
Deferred tax assets:
|
|
|
|
|
|
|
|
|
Net operating loss carryforwards
|
|
$
|
6,645,145 |
|
|
$
|
5,261,805 |
|
R&D tax credit carryforward
|
|
|
1,616,415 |
|
|
|
1,333,641 |
|
Charitable contributions carryover
|
|
|
20,469 |
|
|
|
25,568 |
|
Contract liabilities
|
|
|
61,696 |
|
|
|
—
|
|
Convertible notes
|
|
|
1,991,664 |
|
|
|
—
|
|
Stock-based compensation
|
|
|
318,322 |
|
|
|
228,333 |
|
Total deferred tax assets
|
|
|
10,653,711 |
|
|
|
6,849,347 |
|
|
|
|
|
|
|
|
|
|
Deferred tax liabilities:
|
|
|
|
|
|
|
|
|
Contract assets
|
|
|
(18,769 |
)
|
|
|
—
|
|
Depreciation
|
|
|
(17,347 |
)
|
|
|
(14,864 |
)
|
Net deferred tax asset before valuation allowance
|
|
|
10,617,595 |
|
|
|
6,834,483 |
|
Valuation allowance
|
|
|
(10,617,595 |
)
|
|
|
(6,834,483 |
)
|
Net deferred tax asset
|
|
$
|
—
|
|
|
$
|
—
|
|
|
CleanTech Acquisition Corp [Member] |
|
Income Taxes Table [Abstract] |
|
Schedule of net deferred tax assets (liabilities) |
Deferred tax assets:
|
|
|
|
|
Start-up costs
|
|
$
|
252,290 |
|
Net operating loss carryforwards
|
|
|
20,412 |
|
Total deferred tax assets
|
|
|
272,702 |
|
Valuation allowance
|
|
|
(271,562 |
)
|
Deferred tax liabilities:
|
|
|
|
|
Unrealized gain on investments
|
|
|
(1,140 |
)
|
Total deferred tax liabilities
|
|
|
(1,140 |
)
|
Deferred tax assets, net of allowance
|
|
$
|
—
|
|
|
Schedule income tax provision |
Federal
|
|
|
|
|
Current
|
|
$
|
—
|
|
Deferred
|
|
|
(271,562 |
)
|
|
|
|
|
|
State
|
|
|
|
|
Current
|
|
|
—
|
|
Deferred
|
|
|
—
|
|
Change in valuation allowance
|
|
|
271,562 |
|
Income tax provision
|
|
$
|
—
|
|
|
Schedule of federal income tax rate |
Statutory federal income tax rate
|
|
21.0 |
%
|
State taxes, net of federal tax benefit
|
|
0.0 |
%
|
Change in fair value of derivative warrant liabilities
|
|
61.1 |
%
|
Non-deductible transaction costs
|
|
(8.8 |
)%
|
Change in valuation allowance
|
|
(73.3 |
)%
|
Income tax provision
|
|
0.0 |
%
|
|