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Fair Value Measurements (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Fair Value Measurements (Tables) [Line Items] |  |  |
Schedule of fair value hierarchy for financial assets and liabilities |  |
|  | Fair Value Measurements as of December 31, 2021
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Warrant Liability |  | $ | — |  | $ | — |  | $ | 100,467 |  | $ | 100,467
ONDesign Israel Contingent Consideration – Tapeout |  | $ | — |  | $ | — |  | $ | 1,817 |  | $ | 1,817
ONDesign Israel Contingent Consideration – Design Win |  | $ | — |  | $ | — |  | $ | 2,222 |  | $ | 2,222
City Semi Contingent Consideration – Second Tranche |  | $ | — |  | $ | — |  | $ | 980 |  | $ | 980
|  | Fair Value Measurements as of December 31, 2020
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
SAFEs |  | $ | — |  | $ | — |  | $ | 102,700 |  | $ | 102,700
City Semi Contingent Consideration – First Tranche |  | $ | — |  | $ | — |  | $ | 500 |  | $ | 500
City Semi Contingent Consideration – Second Tranche |  | $ | — |  | $ | — |  | $ | 900 |  | $ | 900
Schedule of significant unobservable inputs |  |
|  | As of December 31, 2021 |  | As of December 31, 2020
|  | Input |  | Input
Liabilities: |  |  |  |  |  |
SAFEs |  |  |  |  |  |
Discount rate |  | N/A |  |  | 75 | %
Constant volatility factor |  | N/A |  |  | 40 | %
Geometric Brownian Motion |  | N/A |  |  | 0.98 |
Warrants |  |  |  |  |  |
Expected volatility |  | 36.0 | % |  | N/A |
City Semi Contingent Consideration – First Tranche |  |  |  |  |  |
Discount rate |  | N/A |  |  | 10.3 | %
City Semi Contingent Consideration – Second Tranche |  |  |  |  |  |
Discount rate |  | 10.8 | % |  | 10.3 | %
ONDesign Israel Contingent consideration – Tapeout |  |  |  |  |  |
Discount rate |  | 4.37 | % |  | N/A |
ONDesign Israel Contingent consideration – Design Win |  |  |  |  |  |
Discount rate |  | 4.37 | % |  | N/A |
Contingent earn-outs – second milestone |  |  |  |  |  |
Constant volatility factor |  | 40 | % |  | N/A |
Schedule of the private placement warrants and public warrant |  |
|  | December 31, 2020
Risk-free rate |  | 1.5 | %
Volatility factor |  | 54.0 | %
Geometric Brownian Motion |  | 0.853 |
Thunder Bridge Acquisition Il, Ltd.[Member] |  |  |
Fair Value Measurements (Tables) [Line Items] |  |  |
Schedule of fair value hierarchy for financial assets and liabilities |
Description |  | Level |  | March 31, 2021 |  | December 31, 2020
Liabilities: |  |  |  |  |  |  |  |
Public Warrants |  | 1 |  | $ | 37,605,000 |  | $ | 63,738,750
Private Placement Warrants |  | 2 |  |  | 19,808,500 |  |  | 33,443,044
|  |  |  | December 31,
Description |  | Level |  | 2020 |  | 2019
Liabilities: |  |  |  |  |  |  |  |
Private Placement Warrants(1) |  | 2 |  | $ | 33,443,044 |  | $ | 7,862,415
Public Warrants(1) |  | 1 |  | $ | 63,738,750 |  | $ | 15,525,000
Schedule of the private placement warrants and public warrant |  |  |
Input |  | August 9, 2019
Risk-free interest rate |  |  | 1.64 | %
Expected term (years) |  |  | 6.72 |
Expected Volatility |  |  | 14 | %
Exercise Price |  | $ | 11.50 |
Stock price |  | $ | 9.50 |
Schedule of fair value of warrant liabilities |  |  |
|  | Private Placement |  | Public |  | Warrant Liabilities
Fair value as of February 13, 2019 |  | $ | — |  |  | $ | — |  |  | $ | — |
Initial Measurement on August 9, 2019 |  |  | 9,175,984 |  |  |  | 17,250,000 |  |  |  | 26,425,984 |
Change in valuation inputs or other assumptions(1)(2) |  |  | (1,313,569 | ) |  |  | (1,725,000 | ) |  |  | (3,038,569 | )
Fair value as of December 31, 2019 |  |  | 7,862,415 |  |  |  | 15,525,000 |  |  |  | 23,387,415 |
Change in valuation inputs or other assumptions(1)(2) |  |  | 25,580,629 |  |  |  | 48,213,750 |  |  |  | 73,794,379 |
Fair value as of December 31, 2020 |  | $ | 33,443,044 |  |  | $ | 63,738,750 |  |  | $ | 97,181,794 |

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- Definition Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 + Details
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- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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