Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Jan. 20, 2022
Entity Listings [Line Items]
Document Type	10-Q/A
Amendment Flag	true
Amendment Description	All of the shares of Class A common stock held by the Company’s public stockholders (the “Public Shares”) contain a redemption feature which provides each holder of such shares with the opportunity to have their shares redeemed, and management has no control over which Public Shares will be redeemed. ASC 480-10-S99-3A provides that redemption provisions not solely within the control of the issuer require shares subject to redemption to be classified outside of permanent equity. Furthermore, ASC 480-10-25-6(b) provides guidance stating that in determining if an instrument is mandatorily redeemable, a provision that defers redemption until a specified liquidity level is reached would not affect classification of the instrument. As such, management has identified errors made in the historical financial statements where, at the closing of the Company’s Initial Public Offering, the Company improperly valued its Class A common stock subject to possible redemption. The Company previously determined the Class A common stock subject to possible redemption to be equal to the redemption value, while also taking into consideration a redemption cannot result in net tangible assets being less than $5,000,001. Management determined that the Public Shares can be redeemed or become redeemable subject to the occurrence of future events considered outside the Company’s control. Therefore, management concluded that the redemption value should include all Class A common stock subject to possible redemption, resulting in the Class A common stock subject to possible redemption being equal to its redemption value. As a result, management has noted a reclassification adjustment related to temporary equity and permanent equity as of the Initial Public Offering date and all subsequent reporting periods. As a result, the Company’s management, together with the Audit Committee, determined that the Company’s financial statements and other financial data as of and for the three months ended March 31, 2021 and June 30, 2021 and for the six months ended June 30, 2021 should be restated in this Quarterly Report as a result of this error (see Note 2 of the financial statements included in this Quarterly Report). These restatements result in a change in the initial carrying value of the Class A common stock subject to possible redemption with the offset recorded to additional paid-in capital (to the extent available), accumulated deficit and Class A common stock. Further, there is no impact to the reported amounts for total assets, total liabilities, cash flows, or net income (loss) but earnings per share was impacted due to a change in presentation relating to the restatements. The financial information that has been previously filed or otherwise reported for this period is superseded by the information in this Quarterly Report, and the financial statements and related financial information contained in the Original Quarterly Report should no longer be relied upon. On November 26, 2021, the Company filed a Current Report on Form 8-K disclosing the non-reliance on the financial statements included in the Original Quarterly Report.
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Document Transition Report	false
Entity File Number	001-39636
Entity Registrant Name	LEFTERIS ACQUISITION CORP.
Entity Central Index Key	0001822873
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-2646550
Entity Address, Address Line One	292 Newbury Street
Entity Address, Address Line Two	Suite 293
Entity Address, City or Town	Boston
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02115
City Area Code	617
Local Phone Number	510-1991
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Units [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-third of one redeemable warrant
Trading Symbol	LFTRU
Security Exchange Name	NASDAQ
Class A common stock [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Shares of Class A common stock included as part of the units
Trading Symbol	LFTR
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		20,709,894
Redeemable Warrants [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Redeemable warrants included as part of the units, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50
Trading Symbol	LFTRW
Security Exchange Name	NASDAQ
Class B Common Stock [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		5,177,473